{"id":21176,"date":"2026-10-07T20:26:17","date_gmt":"2026-10-07T12:26:17","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=21176"},"modified":"2026-10-16T01:43:21","modified_gmt":"2026-10-15T17:43:21","slug":"striking-tool-hardness-and-spalling","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/striking-tool-hardness-and-spalling\/","title":{"rendered":"\ud0c0\uaca9 \uacf5\uad6c\uc758 \uacbd\ub3c4 \ud55c\uacc4\uc640 \ubc15\ub9ac"},"content":{"rendered":"

\ud0c0\uaca9 \uacf5\uad6c\uc758 \uacbd\ub3c4 \ud55c\uacc4\uc640 \ubc15\ub9ac<\/h1>\n\n\n\n

\ud0c0\uaca9 \uacf5\uad6c\ub294 \uacf5\uad6c\uac15 \uc751\uc6a9 \ubd84\uc57c \uc911\uc5d0\uc11c \uacf5\uad6c\ub97c \uc720\uc6a9\ud558\uac8c \ub9cc\ub4dc\ub294 \uacbd\ub3c4\uac00 \ub3d9\uc2dc\uc5d0 \uacf5\uad6c\ub97c \uc704\ud5d8\ud558\uac8c \ub9cc\ub4dc\ub294 \uacbd\ub3c4\uc774\uae30\ub3c4 \ud55c \uc720\uc77c\ud55c \uc0ac\ub840\uc785\ub2c8\ub2e4. \ud2b9\uc815 \uc9c0\uc810\uc744 \ub118\uc73c\uba74 \ud0c0\uaca9\uba74\uc740 \ubcc0\ud615\uc744 \uba48\ucd94\uace0 \ud30c\uad34\ub418\uae30 \uc2dc\uc791\ud558\uba70, \ud0c0\uaca9\uba74\uc5d0\uc11c \ub5a8\uc5b4\uc838 \ub098\uc628 \uc870\uac01\uc740 \uc190\uc7a1\uc774\ub97c \uc7a1\uace0 \uc788\ub294 \uc0ac\ub78c\uc744 \ub2e4\uce58\uac8c \ud560 \ub9cc\ud07c \ucda9\ubd84\ud55c \uc5d0\ub108\uc9c0\ub97c \uc9c0\ub2d9\ub2c8\ub2e4. \uc774 \ud398\uc774\uc9c0\uc5d0\uc11c\ub294 \uacf5\uac1c\ub41c \uaddc\uaca9\uc774 \ud0c0\uaca9 \uacf5\uad6c\uc640 \ud53c\ud0c0\uaca9 \uacf5\uad6c\uc5d0 \ub300\ud574 \uc124\uc815\ud55c \uacbd\ub3c4 \ubc94\uc704, \uadf8 \ubc94\uc704\uc758 \uac01 \ub05d\ub2e8\uc5d0\uc11c \uacf5\uad6c\uac00 \ubcf4\uc774\ub294 \uac70\ub3d9, \uc2dc\ud5d8\uc744 \ud1b5\ud574 \ud5c8\uc6a9 \uac00\ub2a5\ud55c \uacf5\uad6c\ub97c \uc785\uc99d\ud558\ub294 \ubc29\ubc95, \uadf8\ub9ac\uace0 \ud070 \ubc15\ub9ac \uc870\uac01\uc774 \uadf8 \uc544\ub798\uc758 \uac15\uc7ac\uc5d0 \ub300\ud574 \ub9d0\ud574\uc8fc\ub294 \uac83\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacbd\ub3c4 \ubc94\uc704\ub294 \ub9c8\ubaa8 \ud55c\uacc4\uac00 \uc544\ub2c8\ub77c \uc548\uc804 \ud55c\uacc4\uc785\ub2c8\ub2e4<\/h2>\n\n\n\n

\ucd9c\ucc98\uc5d0\uc11c \ud45c\ub85c \uc815\ub9ac\ud55c \ub450 \uaddc\uaca9\uc774 \ud0c0\uaca9\uba74\uc5d0 \ud5c8\uc6a9\ud558\ub294 \ucd5c\ub300 \uacbd\ub3c4\ub294 60 HRC\uc774\uba70, \ucd9c\ucc98\ub294 \uc774 \uc218\uce58\uac00 \uc65c \uadf8 \uc704\uce58\uc5d0 \uc788\ub294\uc9c0 \ubd84\uba85\ud788 \ubc1d\ud799\ub2c8\ub2e4. \ucde8\uc131 \ubcbd\uac1c \ud30c\uad34\ub294 \uadf8\ubcf4\ub2e4 \uc57d\uac04 \ub192\uc740 \uacbd\ub3c4\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uacbd\ud5a5\uc774 \uc788\uc73c\ubbc0\ub85c, 60 HRC\ub294 \ud0c0\uaca9 \uacf5\uad6c\uc758 \uc548\uc804 \ud55c\uacc4\ub97c \ucd08\uacfc\ud558\ub294 \ub370 \ub9e4\uc6b0 \uadfc\uc811\ud55c, \uc5b4\uca4c\uba74 \ub108\ubb34 \uadfc\uc811\ud55c \uc218\uce58\uc785\ub2c8\ub2e4. \uc548\uc804\ud55c \uc0c1\ud55c \uacbd\ub3c4\uc640 \uc548\uc804\ud558\uc9c0 \uc54a\uc740 \uc0c1\ud55c \uacbd\ub3c4 \uc0ac\uc774\uc758 \uacbd\uacc4\ub294 \uc774\uc0b0\uc801\uc774\uc9c0 \uc54a\uace0 \uc804\uc774\uc801\uc774\uba70, \uc774\uac83\uc774 \ub3d9\uc77c\ud55c \uc218\uce58\uac00 \uc5ec\ub7ec \uaddc\uaca9\uc5d0\uc11c \uc608\ub9ac\ud55c \uc784\uacc4\uac12\uc774 \uc544\ub2c8\ub77c \uacf5\uc720\ub41c \ud310\ub2e8\uc73c\ub85c \ub098\ud0c0\ub098\ub294 \uc774\uc720\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud558\ud55c\uc740 \ubc18\ub300 \ubc29\ud5a5\uc73c\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4. \ud0c0\uaca9\uba74\uc740 \ubcf4\ud1b5 \uc57d 50 HRC \uc774\uc0c1\uc73c\ub85c \uc720\uc9c0\ub418\uba70, \uacf5\uad6c\ub97c \uc410\uae30\uc640 \uac19\uc740 \ub2e4\ub978 \uac15\uc7ac \uacf5\uad6c\ub97c \ud0c0\uaca9\ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uacbd\uc6b0 \ud558\ud55c\uc740 \uc57d 45 HRC\ub85c \ub0ae\uc544\uc9d1\ub2c8\ub2e4. \uc774 \uc218\uce58\ub294 \uadf8\uac83\uc774 \uc8fc\ub294 \uacbd\uace0\ub97c \uc704\ud574 \uc120\ud0dd\ub429\ub2c8\ub2e4. 45 HRC\uc5d0\uc11c\ub294 \ubcc0\ud615 \uacbd\ud654 \uc9c0\uc218\uac00 \ub354 \ud06c\uace0 \ubcc0\ud615\uc774 \ub354 \uad11\ubc94\uc704\ud558\uac8c \uc77c\uc5b4\ub098\ubbc0\ub85c, \uacf5\uad6c\ub294 \ud30c\uad34\ub418\ub294 \ub300\uc2e0 \ubc84\uc12f \ubaa8\uc591\uc73c\ub85c \ud37c\uc9c0\ub294 \uacbd\ud5a5\uc774 \uc788\uace0, \ubc84\uc12f \ubaa8\uc591\uc73c\ub85c \ud37c\uc9c4 \uba74\uc740 \uc0ac\uc6a9\uc790\uc5d0\uac8c \ubc15\ub9ac\uac00 \ub2e4\uac00\uc624\uace0 \uc788\uc74c\uc744 \uc54c\ub824\uc90d\ub2c8\ub2e4. \ubc84\uc12f \ubaa8\uc591\uc73c\ub85c \ud37c\uc9c0\uae30\uc5d0 \ub108\ubb34 \ub2e8\ub2e8\ud55c \uba74\uc740 \uc544\ubb34\ub7f0 \uc608\uace0\ub3c4 \uc8fc\uc9c0 \uc54a\ub294 \uba74\uc774\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud53c\ud0c0\uaca9 \uacf5\uad6c\ub294 \uac19\uc740 \ub17c\ub9ac\ub97c \ubc18\ub300 \ubc29\ud5a5\uc73c\ub85c \ub530\ub985\ub2c8\ub2e4. \ud53c\ud0c0\uaca9 \uacf5\uad6c\uc758 \ucd5c\ub300 \ud5c8\uc6a9 \uacbd\ub3c4\ub294 \ud0c0\uaca9 \uacf5\uad6c\ubcf4\ub2e4 \ub0ae\uc73c\ubbc0\ub85c, \ud53c\ud0c0\uaca9 \uacf5\uad6c\uac00 \uac70\uc2dc\uc801 \uc18c\uc131 \ubcc0\ud615\uc744 \uac10\ub2f9\ud558\uace0 \uc811\ucd09 \uba74\uc801\uc774 \ucee4\uc9c0\uba70, \ud0c0\uaca9 \uacf5\uad6c\uc758 \uc751\ub825\uc774 \ub354 \ud070 \ubd80\ud53c\uc5d0 \ubd84\uc0b0\ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc5f0\ud55c \ud53c\ud0c0\uaca9 \uacf5\uad6c\ub294 \ud0c0\uaca9 \uacf5\uad6c \ubcf4\ud638\uc758 \uc77c\ubd80\uc774\uba70, \uadf8\uac83\uc774 \ubc1c\uc0dd\uc2dc\ud0a4\ub294 \ubc84\uc12f \ubaa8\uc591 \ubcc0\ud615\uc740 \uc758\ub3c4\ub41c \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud0c0\uaca9\uba74\uc758 \uacbd\ub3c4<\/th>\ud0c0\uaca9 \uc2dc \uacf5\uad6c\uc758 \uac70\ub3d9<\/th>\uc0ac\uc6a9\uc790\uc5d0\uac8c \uc758\ubbf8\ud558\ub294 \ubc14<\/th><\/tr><\/thead>
\ud5c8\uc6a9 \ucd5c\ub300\uce58 \ucd08\uacfc<\/td>\ucde8\uc131 \ubcbd\uac1c \ud30c\uad34\ub294 \uaddc\uaca9\uc774 \ud5c8\uc6a9\ud558\ub294 \uac83\ubcf4\ub2e4 \uc57d\uac04 \ub192\uc740 \uacbd\ub3c4\uc5d0\uc11c \uc2dc\uc791\ub429\ub2c8\ub2e4<\/td>\ud0c0\uaca9\uba74\uc5d0\uc11c \ub5a8\uc5b4\uc838 \ub098\uc628 \uc870\uac01\uc740 \ubd80\uc0c1\uc744 \uc785\ud790 \ub9cc\ud07c \ucda9\ubd84\ud55c \uc5d0\ub108\uc9c0\ub97c \uc9c0\ub2c8\uba70, \uc774\uac83\uc774 \ub450 \uaddc\uaca9\uc774 60 HRC\uc5d0\uc11c \uba48\ucd94\uace0 \ucd9c\ucc98\uac00 \uadf8 \uc218\uce58\ub97c \uc548\uc804 \ud55c\uacc4\uc5d0 \ub9e4\uc6b0 \uadfc\uc811\ud55c \uac83\uc73c\ub85c \ubd80\ub974\ub294 \uc774\uc720\uc785\ub2c8\ub2e4<\/td><\/tr>
\ubc94\uc704 \uc0c1\ub2e8, 55~60 HRC<\/td>\ud0c0\uaca9\uba74\uc740 \ud3c9\ud3c9\ud558\uac8c \uc720\uc9c0\ub418\uba70 \ud30c\uad34\ub418\uae30 \uc804\uc5d0 \ubcc0\ud615\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4<\/td>\ub0b4\ub9c8\ubaa8\uc131\uc740 \ucd5c\uc0c1\uc774\uace0 \uacbd\uace0\uc131\uc740 \ucd5c\uc545\uc785\ub2c8\ub2e4. \ubc84\uc12f \ubaa8\uc591\uc73c\ub85c \ud37c\uc9c8 \uc218 \uc5c6\ub294 \uba74\uc740 \ubc15\ub9ac\ub418\uae30 \uc804\uc5d0 \uc544\ubb34\ub7f0 \uc2e0\ud638\ub3c4 \uc8fc\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4<\/td><\/tr>
\uc911\uac04 \ubc94\uc704, 50~55 HRC<\/td>\ud0c0\uaca9\uba74\uc740 \ubc18\ubcf5 \ud0c0\uaca9 \ud558\uc5d0\uc11c \ucc9c\ucc9c\ud788 \ub9c8\ubaa8\ub418\uace0 \ubcc0\ud615\ub429\ub2c8\ub2e4<\/td>\ud574\uba38 \ud5e4\ub4dc, \ucda9\uaca9 \uacf5\uad6c \ubc0f \uc911\ub7c9 \ud0c0\uaca9 \uacf5\uad6c\uc5d0 \uc2e4\uc6a9\uc801\uc778 \ubc94\uc704<\/td><\/tr>
\uc57d 45~50 HRC<\/td>\ubcc0\ud615 \uacbd\ud654 \uc9c0\uc218\uac00 \ub354 \ud06c\uace0 \ubcc0\ud615\uc774 \ub354 \uad11\ubc94\uc704\ud558\uac8c \uc77c\uc5b4\ub098\ubbc0\ub85c \ud0c0\uaca9\uba74\uc774 \ubc84\uc12f \ubaa8\uc591\uc73c\ub85c \ud37c\uc9d1\ub2c8\ub2e4<\/td>\ubc84\uc12f \ubaa8\uc591 \ubcc0\ud615\uc740 \ubc15\ub9ac\uac00 \uc784\ubc15\ud588\uc744 \uc218 \uc788\ub2e4\ub294 \uacbd\uace0\uc785\ub2c8\ub2e4. \uc774\ub294 \ub610\ud55c \uacf5\uad6c\uac00 \uc410\uae30\uc640 \uac19\uc740 \ub2e4\ub978 \uac15\uc7ac \uacf5\uad6c\ub97c \ud0c0\uaca9\ud574\uc57c \ud558\ub294 \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ubc94\uc704\uc774\uae30\ub3c4 \ud569\ub2c8\ub2e4<\/td><\/tr>
\ud53c\ud0c0\uaca9 \uacf5\uad6c, \ud0c0\uaca9 \uacf5\uad6c\ubcf4\ub2e4 \ub0ae\uc74c<\/td>\ud53c\ud0c0\uaca9 \uacf5\uad6c\uac00 \uba3c\uc800 \ubcc0\ud615\ub418\uace0 \uc811\ucd09 \uba74\uc801\uc774 \ucee4\uc9d1\ub2c8\ub2e4<\/td>\ub354 \ud070 \uc811\ucd09 \uba74\uc801\uc740 \ud0c0\uaca9 \uacf5\uad6c\uc758 \ub354 \ud070 \ubd80\ud53c\uc5d0 \uc751\ub825\uc744 \ubd84\uc0b0\uc2dc\ud0a4\ubbc0\ub85c, \uc5f0\ud55c \ud53c\ud0c0\uaca9 \uacf5\uad6c\ub294 \ud0c0\ud611\uc774 \uc544\ub2c8\ub77c \uc548\uc804 \uc870\uce58\uc785\ub2c8\ub2e4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ud0c0\uaca9\uba74\uc758 \uacbd\ub3c4 \ubc94\uc704\uc640 \uadf8 \uac01 \uc9c0\uc810\uc5d0\uc11c \uacf5\uad6c\uac00 \ubcf4\uc774\ub294 \uac70\ub3d9. \uaddc\uaca9\uc5d0 \ub300\ud55c \ub17c\ud3c9\uacfc \uae30\uc0ac Spalling from Impact Events\uc758 \ud0c0\uaca9 \uc2dc\ud5d8 \ub17c\uc758\uc5d0\uc11c \ud3b8\uc9d1\ud568.<\/em><\/p>\n\n\n\n

\uaddc\uaca9\uc774 \uc2e4\uc81c\ub85c \uc694\uad6c\ud558\ub294 \uac83<\/h2>\n\n\n\n

\uaddc\uaca9\uc740 \uacbd\ub3c4 \ubc94\uc704 \uc678\uc5d0\ub3c4 \uc5ec\ub7ec \uba74\uc5d0\uc11c \ub2e4\ub985\ub2c8\ub2e4. \uaddc\uaca9\uc740 \uc9c0\uc815\ud558\ub294 \uac15\uc7ac, \uaddc\uc81c\ud558\ub294 \uacf5\uad6c\uc758 \uba74, \uadf8\ub9ac\uace0 \uacf5\uad6c\ub97c \uc785\uc99d\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uc2dc\ud5d8\uc5d0\uc11c \ub2e4\ub985\ub2c8\ub2e4. \ud0c0\uc545\uae30 \ud2b8\ub799 \uacf5\uad6c\ub294 \ud0c0\uaca9\uba74, \ud53c\ud0c0\uaca9\uba74, \uc808\uc0ad\ub0a0 \ubc0f \ub05d\ub2e8\uc758 \ub124 \uacf3\uc5d0\uc11c \uaddc\uc81c\ub418\uba70, \uac01\uac01 \ub2e4\ub978 \uacbd\ub3c4\uac00 \ud5c8\uc6a9\ub429\ub2c8\ub2e4. \ud574\uba38\ub294 \ud0c0\uaca9\uba74\uacfc \ud0c0\uaca9\uba74 \uc544\ub798 3\ubc00\ub9ac\ubbf8\ud130 \uc9c0\uc810\uc5d0\uc11c \uaddc\uc81c\ub418\uba70, \uc774 \uc9c0\uc810\uc740 \uc5f0\ud55c \ub0b4\ubd80 \uc704\uc758 \ub2e8\ub2e8\ud55c \ud45c\uba74\uc774 \uadf8\ub807\uc9c0 \uc54a\uc73c\uba74 \uc228\uaca8\uc9c8 \uc218 \uc788\ub294 \uacf3\uc785\ub2c8\ub2e4. \ub04c\uc740 53~60 HRC\uc758 \uc808\uc0ad\ub0a0\uacfc \ud568\uaed8 \ucd5c\ub300 45 HRC\uc758 \ud53c\ud0c0\uaca9\uba74\uc774 \ud5c8\uc6a9\ub418\uba70, \uc774\ub294 \ud0c0\uaca9\uc744 \ubc1b\uace0 \uc808\uc0ad\ub3c4 \ud574\uc57c \ud558\ub294 \uacf5\uad6c\uc5d0 \uc801\uc6a9\ub41c \ub3d9\uc77c\ud55c \uac1c\ub150\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc0ac\uc591<\/th>\uacf5\uad6c \uc720\ud615<\/th>\uac15\uc7ac \uc870\uc131<\/th>\uacbd\ub3c4, HRC<\/th>\ud0c0\uaca9 \uc2dc\ud5d8<\/th><\/tr><\/thead>
AREMA<\/td>\ucda9\uaca9 \uc120\ub85c \uacf5\uad6c<\/td>9260A, 0.56~0.64C, 1.8~2.0Si, 0.75~1.0Mn. 9260B, 0.51~0.60C, 1.8~2.2Si, 0.75~1.0Mn, 0.35~0.50Mo, 0.45Si \ucd5c\ub300<\/td>\ud0c0\uaca9\uba74 51~55. \ud53c\ud0c0\uaca9\uba74 44~48. \uc808\uc0ad\ub0a0 56~60. \ub05d\ub2e8 52~56<\/td>\uc5c6\uc74c<\/td><\/tr>
ANSI B173.3-1991<\/td>\uc911\ud0c0\uaca9 \uacf5\uad6c<\/td>0.45~0.88C, 0.3~1.2Mn, 0.35Si \ucd5c\ub300, ASTM A576, A322 \ub610\ub294 A681\uc5d0 \ub530\ub984<\/td>\ud0c0\uaca9\uba74 45~60. \ubaa9\uc7ac \ubd84\ud560\uc6a9 \uba54\uc77c 44~55. \ud39c 45~60<\/td>\ube14\ub85d \uacbd\ub3c4 92~105 HRB<\/td><\/tr>
BS 876-1981<\/td>\ud574\uba38<\/td>0.5~0.6C, 0.5~0.9Mn, 0.1~0.4Si, \ud5e4\ub4dc \uc9c8\ub7c9 1.8 kg (4 lb) \ucd08\uacfc \uc2dc 0.2~0.3Cr \ucca8\uac00<\/td>\ud0c0\uaca9\uba74 50~58. \ud0c0\uaca9\uba74 \uc544\ub798 3mm \uc9c0\uc810 46<\/td>\ub178\uba40\ub77c\uc774\uc9d5\ud55c \uac15\uc7ac \ube14\ub85d, \ud574\uba38\uc640 \ub3d9\uc77c\ud55c \uac15\uc7ac, \ud0c0\uaca9\uba74 \uc8fc\ubcc0\ubd80\uc5d0 6\ud68c \ud0c0\uaca9<\/td><\/tr>
GGG-H-86C-1963<\/td>\ud574\uba38<\/td>0.46~0.85C, 0.2~0.9Mn, 0.1~3Si<\/td>\uc591\uba74 \ud574\uba38 44~55. \ubaa9\uc218\uc6a9 \ud574\uba38 50~60. \ubcfc \ud39c \ud574\uba38 50~57<\/td>60 cm (25 in.) \ubbf8\ub9cc \ud578\ub4e4, 92~105 HRB. 60 cm \ucd08\uacfc \ud578\ub4e4, 40~45 HRC<\/td><\/tr>
ANSI B209.3-1990<\/td>\ubaa9\uc7ac \ubd84\ud560 \uc410\uae30<\/td>ASTM A29, A576 \ub610\ub294 A681\uc5d0 \ub530\ub978 \ud0c4\uc18c\uac15<\/td>\ucd5c\ub300 35<\/td>\ub099\ud558 \uc911\ub7c9 \uc2dc\ud5d8, 1.5 m (5 ft)\uc5d0\uc11c 4.5 kg (10 lb)<\/td><\/tr>
ANSI B209.1-1991<\/td>\ub04c<\/td>ASTM A29, A322, A331, A576 \ub610\ub294 A681\uc5d0 \ub530\ub978 \ud0c4\uc18c\uac15 \ub610\ub294 \ud569\uae08\uac15<\/td>\ud0c0\uaca9\uba74 \ucd5c\ub300 45. \uc808\ub2e8\ub0a0 53~60<\/td>\ub099\ud558 \uc911\ub7c9 \uc2dc\ud5d8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ucd9c\ucc98\uc5d0\uc11c \ud45c\ub85c \uc815\ub9ac\ud55c 6\uac00\uc9c0 \ud0c0\uaca9 \ubc0f \ud53c\ud0c0\uaca9 \uacf5\uad6c \uc0ac\uc591\uc73c\ub85c, \uac01\uac01 \uba85\uc2dc\ub41c \uac15\uc7ac\uc758 \uc870\uc131\uacfc \ud5c8\uc6a9 \uacbd\ub3c4 \ubc94\uc704\ub97c \ud3ec\ud568\ud55c\ub2e4. \ubaa8\ub4e0 \ucca0\ub3c4\uc6a9 \ud0c0\uaca9 \ubc0f \ud53c\ud0c0\uaca9 \uacf5\uad6c\ub294 \ud604\uc7ac \ub4f1\uae09 B \uac15\uc7ac\ub85c \uc81c\uc870\ub418\uba70, \ud074\ub85c \ubc14, \ub808\uc77c \uc9d1\uac8c, \ub808\uc77c \ud3ec\ud06c\uc640 \uac19\uc740 \ube44\ucda9\uaca9 \uacf5\uad6c\ub294 \uc77c\ubc18 \ud0c4\uc18c\uac15\uc73c\ub85c \uc81c\uc870\ub41c\ub2e4. \ucd9c\ucc98: \ud574\ub2f9 \uae30\uc0ac\uc758 \ud45c 1.<\/em><\/p>\n\n\n\n

\uc2dc\ud5d8\uc744 \ud1b5\ud55c \uacf5\uad6c \uac80\uc99d<\/h2>\n\n\n\n

\ub450 \uac1c\uc758 \uaddc\uaca9\uc740 \ud0c0\uaca9 \uacf5\uad6c\ub97c 92~105 HRB\uc758 \uac15 \ube14\ub85d\uc5d0 \ud0c0\uaca9\ud558\ub3c4\ub85d \uc694\uad6c\ud558\uba70, \uc138 \ubc88\uc9f8 \uaddc\uaca9\uc740 \ub178\uba40\ub77c\uc774\uc9d5\ub41c \uac15 \ube14\ub85d\uc744 \uc694\uad6c\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uacbd\ub3c4 \uc218\uc900\uc740 \ub0ae\uc73c\uba70, \ucd9c\ucc98\ub294 \uadf8 \uacb0\uacfc\uc5d0 \ub300\ud574 \uc9c1\uc811\uc801\uc73c\ub85c \uc5b8\uae09\ud569\ub2c8\ub2e4. \ube14\ub85d\uc740 \ud0c0\uaca9 \uc2dc \uc0c1\ub2f9\ud788 \ubcc0\ud615\ub418\uba70, \ud0c0\uaca9\ubc1b\ub294 \uacf5\uad6c\uc5d0 \uc801\uc6a9\ub41c \uac83\uacfc \ub3d9\uc77c\ud55c \ub17c\ub9ac\ub85c, \uc5f0\ud55c \ubaa8\ub8e8\ub294 \uc751\ub825\uc744 \ubd84\uc0b0\uc2dc\ucf1c \ud0c0\uaca9 \uacf5\uad6c\uac00 \uc2a4\ud3f4\ub9c1\ub420 \uac00\ub2a5\uc131\uc744 \uc904\uc785\ub2c8\ub2e4. \uc778\uc6a9\ub41c \uc99d\uac70\ub294 McIntire\uc640 Manning\uc774 24 HRC\uc758 \ubaa8\ub8e8\uc5d0 190 J(140 ft · lbf)\uc758 \ucda9\uaca9 \uc5d0\ub108\uc9c0\ub85c \ud0c0\uaca9\ud588\uc744 \ub54c \ud574\uba38\uc5d0 \uc2a4\ud3f4\ub9c1\uc744 \uc77c\uc73c\ud0a4\uc9c0 \ubabb\ud588\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \uadf8\ub7ec\ud55c \ubaa8\ub8e8\uc5d0 \ub300\ud574 100\ud68c\uc758 \uc644\uc804\ud55c \uc2a4\uc719 \ud0c0\uaca9\uc744 \uac00\ud558\ub294 \ud0c0\uaca9 \uc2dc\ud5d8\uc740 \uacf5\uad6c\uc758 \ub0b4\uad6c\uc131 \uc2dc\ud5d8\uc774\uba70 \uc2a4\ud3f4\ub9c1 \uacbd\ud5a5\uc131 \uc2dc\ud5d8\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud55c \uaddc\uaca9\uc740 \ud578\ub4e4 \uae38\uc774\uac00 635 mm(25 in.)\ub97c \ucd08\uacfc\ud558\ub294 \ud574\uba38\uc5d0 \ub300\ud574 40~45 HRC\uc758 \ubaa8\ub8e8\ub77c\ub294 \ub354 \uc5c4\uaca9\ud55c \uc870\uac74\uc744 \uc694\uad6c\ud588\uc73c\ub098, \uadf8 \uc694\uad6c\uc0ac\ud56d\uc740 \uc774\ud6c4 \ud6e8\uc52c \ub354 \uc5f0\ud55c \ubaa8\ub8e8\ub97c \uac00\uc9c4 ANSI \uaddc\uaca9\uc73c\ub85c \ub300\uccb4\ub418\uc5c8\uace0, \ub300\uc2e0 \uc790\ubd84 \ud0d0\uc0c1 \ub610\ub294 \ucd08\uc74c\ud30c \ud0d0\uc0c1\uc774 \ucd94\uac00\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc2dc\ud5d8\uc758 \ub2e4\ub978 \ubcc0\uc218\ub294 \ud0c0\uaca9\uc774 \uac00\ud574\uc9c0\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \uaddc\uaca9\uc740 \ud0c0\uaca9\uba74\uc744 \ud45c\uba74\uc5d0 \ud3c9\ud589\ud558\uac8c \ud558\uc5ec \uc815\uba74\uc73c\ub85c \ud0c0\uaca9\ud560 \uac83\uacfc, \ube44\uc2a4\ub4ec\ud55c \ud0c0\uaca9, \uacfc\ub2e4 \ud0c0\uaca9 \ubc0f \uacfc\uc18c \ud0c0\uaca9\uc744 \ud53c\ud560 \uac83\uc744 \uc694\uad6c\ud569\ub2c8\ub2e4. \uc774\ub294 \ubaa8\uc11c\ub9ac\uc5d0 \uac00\ud574\uc9c4 \ud0c0\uaca9\uc774 \ub2e8\uba74\uc774 \uc9c0\uc9c0\ud558\uc9c0 \ubabb\ud558\ub294 \uc704\uce58\uc5d0 \ud558\uc911\uc744 \uac00\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2a4\ud3f4\uc744 \uc808\ub2e8\ud558\uc5ec \uc5f4\uc5c8\uc744 \ub54c\uc758 \ubaa8\uc2b5<\/h2>\n\n\n\n

\uc81c\ub300\ub85c \uac80\uc0ac\ub41c \uc2a4\ud3f4\uc740 \uacf5\uad6c\uac00 \ud30c\uc190\ub418\uc5c8\ub2e4\ub294 \uc0ac\uc2e4\ubcf4\ub2e4 \ub354 \ub9ce\uc740 \uc815\ubcf4\ub97c \ub2f4\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ubcfc\ud540 \ud574\uba38\uc758 \ucd9c\ucc98 \ub2e8\uba74\uc5d0\uc11c, \uacf5\ub3d9\uc758 \ud14c\ub450\ub9ac\ub294 \uc804\ub2e8\ub41c \uac83\uc73c\ub85c \ub098\ud0c0\ub0ac\uc73c\uba70 \ud0c0\uaca9 \ud45c\uba74\uc758 \uc77c\ubd80\uac00 \uc5ec\uc804\ud788 \ubd80\ucc29\ub418\uc5b4 \uc788\uc5c8\uace0, \uba74\uc758 \uc5f0\uc0ad \uc790\uad6d\uc740 \ud14c\ub450\ub9ac \uac00\uc7a5\uc790\ub9ac\uc5d0\uc11c \ub05d\ub0ac\uc2b5\ub2c8\ub2e4. \uacf5\ub3d9 \ud45c\uba74\uc5d0\ub294 \uc587\uc740 \uc0b0\ud654\ub9c9\uc774 \uc788\uc5c8\uc73c\uba70, \uc774\ub294 \uc0ac\uac74 \uc911 \ub3c4\ub2ec\ud55c \ucd5c\uc18c \uc628\ub3c4\ub97c 430~540 °C \ubc94\uc704\uc758 \uc5b4\ub290 \uc9c0\uc810\uc73c\ub85c \uace0\uc815\uc2dc\ucf30\uace0, \uadf8 \uc628\ub3c4\ub294 \uc5f4\ucc98\ub9ac\uac00 \uc544\ub2cc \uc2a4\ud3f4\ub9c1 \uacfc\uc815\uc758 \uc18c\uc131 \ubcc0\ud615\uc5d0\uc11c \ube44\ub86f\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ub2e8\uba74\uc5d0\uc11c, \ub2e8\uc5f4 \uc804\ub2e8 \ubc34\ub4dc\uac00 \uc804\uccb4 \uacf5\ub3d9 \ud45c\uba74\uc744 \ub36e\uace0 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8 \ubc34\ub4dc\ub294 \ubbf8\ud15c\ud37c\ub9c1\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uc758 \ubc1d\uc740 \uc5d0\uce6d \uce35\uc774\uba70, \uadf8 \ud504\ub85c\ud30c\uc77c\uc740 \ud574\ub2f9 \uc2a4\ud3f4 \uc81c\uac70\uc5d0 \ub450 \uac1c\uc758 \ubcc4\ub3c4 \uc804\ub2e8\uc774 \uad00\uc5ec\ud588\uc74c\uc744 \ubcf4\uc5ec\uc8fc\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub2e4\ub978 \uacf5\ub3d9\uc5d0 \uc801\uc6a9\ud55c \ub3d9\uc77c\ud55c \uac80\uc0ac\ub294 \ubc18\ub300\uc758 \uacb0\uacfc\ub97c \uc8fc\uc5c8\uc2b5\ub2c8\ub2e4. \uc5f0\uc0ad \uc790\uad6d\uc774 \ud14c\ub450\ub9ac\uc5d0\uc11c \ub05d\ub098\uc9c0 \uc54a\uace0 \ud14c\ub450\ub9ac\ub97c \uac00\ub85c\uc9c0\ub974\ub294 \uacbd\uc6b0, \ud14c\ub450\ub9ac\ub294 \uc804\ub2e8\ub41c \uac00\uc7a5\uc790\ub9ac\uac00 \uc544\ub2c8\ub77c \ud568\ubab0\uc774\uba70, \uacf5\ub3d9\uc740 \uc2a4\ud3f4\uc758 \ubc30\ucd9c \ud6c4 \uc8fc\ubcc0 \uba74\uc758 \uc18c\uc131 \ubcc0\ud615\uc5d0 \uc758\ud574 \ud615\uc131\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774 \ub450 \uacbd\uc6b0\ub97c \uad6c\ubcc4\ud558\ub294 \uac83\uc774 \uc2a4\ud3f4\uc744 \uc808\ub2e8\ud558\ub294 \uc694\uc810\uc774\uba70, \uc774\ub294 \uc885\uc885 \ubd88\uac00\ub2a5\ud55c \ub2e8\uacc4\uc778\ub370, \ud0c0\uaca9 \uacf5\uad6c\ub294 \ube48\ubc88\ud788 \uc18c\uc1a1\uc758 \ub300\uc0c1\uc774 \ub418\uc5b4 \ud30c\uad34 \uc2dc\ud5d8\uc774 \ud5c8\uc6a9\ub418\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ud55c \uacbd\uc6b0 \uc2a4\ud3f4 \uc790\uccb4\uc640 \ud30c\ub2e8\uba74\uc774 \uc720\uc77c\ud55c \uc99d\uac70\uc774\uba70, \ub5a8\uc5b4\uc838 \ub098\uc628 \uc870\uac01\uc740 \ubc14\ub85c \uadf8 \uc774\uc720\ub85c \ubcf4\uad00\ud560 \uac00\uce58\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uad00\ucc30\ub418\ub294 \uac83<\/th>\uadf8\uac83\uc774 \uc758\ubbf8\ud558\ub294 \uac83<\/th><\/tr><\/thead>
\uc804\ub2e8\ub41c \ub9bc(rim)\uc73c\ub85c, \ud0c0\uaca9\uba74\uc758 \uc5f0\uc0ad \uc790\uad6d\uc774 \ub9bc \uac00\uc7a5\uc790\ub9ac\uc5d0\uc11c \ub05d\ub09c\ub2e4<\/td>\ud0c0\uaca9\uc73c\ub85c \ub0a8\uc740 \uc7ac\ub8cc\uac00 \uc804\ub2e8\uc5d0 \uc758\ud574 \uc808\ub2e8\ub418\uc5c8\uace0, \uc2a4\ud3f4(spall)\uc740 \ubcc4\ub3c4\uc758 \uc870\uac01\uc73c\ub85c \ub5a8\uc5b4\uc838 \ub098\uc654\ub2e4. \ud0c0\uaca9\uba74\uc758 \uc870\uac01\uc774 \ub9bc\uc5d0 \ubd99\uc5b4 \ub0a8\uc744 \uc218 \uc788\ub2e4<\/td><\/tr>
\ubcc0\ud615\ub41c \ub9bc\uc73c\ub85c, \uc5f0\uc0ad \uc790\uad6d\uc774 \ub9bc\uc744 \uac00\ub85c\uc9c8\ub7ec \uacc4\uc18d\ub41c\ub2e4<\/td>\ub9bc\uc740 \uc804\ub2e8\ub41c \uac00\uc7a5\uc790\ub9ac\uac00 \uc544\ub2c8\ub77c \ud568\ubab0\ubd80\uc774\ubbc0\ub85c, \uc2a4\ud3f4\uc758 \ubc30\ucd9c \ud6c4 \uc8fc\ubcc0 \uba74\uc758 \uc18c\uc131 \ubcc0\ud615\uc5d0 \uc758\ud574 \ud615\uc131\ub41c \uacf5\ub3d9\uc774\ub2e4<\/td><\/tr>
\uacf5\ub3d9 \ud45c\uba74\uc758 \uc77c\ubd80\ub97c \uc5b4\ub461\uac8c \ud558\ub294 \uc587\uc740 \uc0b0\ud654\ub9c9<\/td>\uc2a4\ud3f4\uc744 \uc0dd\uc131\ud55c \uc18c\uc131 \ubcc0\ud615\uc73c\ub85c\ubd80\ud130\uc758 \uc5f4. \ub3c4\ub2ec\ud55c \ucd5c\uc18c \uc628\ub3c4\ub294 430~540 °C(800~1000 °F) \ubc94\uc704\uc774\ub2e4<\/td><\/tr>
\uc5f0\ub9c8 \ubc0f \uc5d0\uce6d\ud55c \ub2e8\uba74\uc5d0\uc11c \uacf5\ub3d9 \ud45c\uba74\uc744 \ub36e\ub294 \uc5f0\ud55c \uc5d0\uce6d \ubc34\ub4dc<\/td>\ub2e8\uc5f4 \uc804\ub2e8 \ubc34\ub4dc(adiabatic shear band)\ub85c, \uc774\ub294 \ubbf8\ud15c\ud37c\ub9c1 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uce35\uc774\ub2e4. \ubc34\ub4dc\uc758 \ud504\ub85c\ud30c\uc77c\uc740 \uc2a4\ud3f4 \uc81c\uac70\uc5d0 \uba87 \uac1c\uc758 \uac1c\ubcc4 \uc804\ub2e8\uc774 \uad00\uc5ec\ud588\ub294\uc9c0 \ubcf4\uc5ec\uc900\ub2e4<\/td><\/tr>
\ubd80\ud488 \ub0b4\ubd80\uc5d0\uc11c\ub294 \ud45c\uba74\uc774 \ubc1d\uace0 \uc790\uc720 \ud45c\uba74\uacfc \ub9cc\ub098\ub294 \uacf3\uc5d0\uc11c\ub294 \uc5b4\ub450\uc6b4 \uc120\ud589 \uade0\uc5f4<\/td>\ub2f4\uae08\uc9c8 \uade0\uc5f4. \ud45c\uba74\uacfc \uc804\ud600 \uad50\ucc28\ud558\uc9c0 \uc54a\uc740 \uade0\uc5f4 \ubd80\ubd84\uc740 \uc0b0\ud654\ub418\uc9c0 \uc54a\uc740 \uc0c1\ud0dc\ub85c \ub0a8\uc544 \uc788\uace0, \ud45c\uba74\uc5d0 \ub3c4\ub2ec\ud55c \ubd80\ubd84\uc740 \ud15c\ud37c\ub9c1 \uc911\uc5d0 \uc0b0\ud654\ub418\uc5c8\uc73c\ubbc0\ub85c, \uc624\ub798\ub41c \ud30c\uba74\uacfc \uc0c8\ub85c\uc6b4 \ud30c\uba74\uc740 \ub300\ube44\uc5d0\uc11c \ucc28\uc774\uac00 \ub09c\ub2e4<\/td><\/tr>
\ud55c \ub85c\ud2b8\uc758 \ub9ce\uc740 \uacf5\uad6c\uac00 \ubcf8\uc9c8\uc801\uc73c\ub85c \ub3d9\uc77c\ud55c \uce69 \ud615\uc0c1\uc73c\ub85c \ud30c\uc190\ub418\ub294 \uacbd\uc6b0<\/td>\ud15c\ud37c \ucde8\uc131\uc73c\ub85c, Rucker’s reagent\uc640 \uac19\uc740 \uc5d0\uce6d\uc561\uc73c\ub85c \ucde8\ud654\ub41c \uacb0\uc815\ub9bd\uacc4\ub97c \ub4dc\ub7ec\ub0b4\uc5b4 \ud655\uc778\ud55c\ub2e4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uc2a4\ud3f4 \uce90\ube44\ud2f0\uac00 \uc9c0\ub2c8\ub294 \ud2b9\uc9d5\uacfc \uac01 \ud2b9\uc9d5\uc774 \ub4b7\ubc1b\uce68\ud558\ub294 \ud310\ub3c5 \ub0b4\uc6a9\uc73c\ub85c, Spalling from Impact Events \uae30\uc0ac\uc758 \ub2e8\uba74\uacfc \uc0ac\ub840 \uc774\ub825\uc5d0\uc11c \ubc1c\ucdcc\ud55c \uac83\uc774\ub2e4.<\/em><\/p>\n\n\n\n

\ud070 \uc2a4\ud3f4\uc774 \uac15\uc7ac\uc5d0 \ub300\ud574 \ub9d0\ud574\uc8fc\ub294 \uac83<\/h2>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \ud45c\uba74 \uc2a4\ud3f4\uc740 \uc0ac\uc6a9 \uc911 \ubc1c\uc0dd\ud55c \uc0ac\uac74\uc774\uc9c0\ub9cc, \ud070 \uc2a4\ud3f4\uc740 \uadf8\ub807\uc9c0 \uc54a\ub2e4. \ud070 \uc2a4\ud3f4\uc758 \ud615\uc131\uc740 \ud56d\uc0c1 \uacb0\ud568\uc774 \uc788\ub294 \uc7ac\ub8cc\uc640 \uad00\ub828\ub418\uba70, \ucd9c\ucc98\uc5d0\uc11c \uc5b8\uae09\ud558\ub294 \ub450 \uac00\uc9c0 \uacb0\ud568\uc740 \uc120\ud589 \uade0\uc5f4\uacfc \uacb0\uc815\ub9bd\uacc4\uc758 \ubcc0\ud654\uc774\ub2e4. \ub2f4\uae08\uc9c8 \uade0\uc5f4\uc774 \uc774 \ub458 \uc911 \ub354 \ud754\ud558\ub2e4. \uadf8\ub7f0 \uade0\uc5f4\uc774 \uacf5\uad6c \ub0b4\ubd80\uc5d0 \uc644\uc804\ud788 \uc704\uce58\ud560 \ub54c, \uadf8 \ud45c\uba74\uc740 \ub178\uc5d0 \uc804\ud600 \ub178\ucd9c\ub418\uc9c0 \uc54a\uc544 \ubc1d\uac8c \uc720\uc9c0\ub418\uc9c0\ub9cc, \ub098\uc911\uc5d0 \uc790\uc720 \ud45c\uba74\uc5d0 \ub3c4\ub2ec\ud558\ub294 \ubd80\ubd84\uc740 \ud15c\ud37c\ub9c1 \uc911\uc5d0 \uc0b0\ud654\ub418\ubbc0\ub85c, \uc624\ub798\ub41c \ud30c\uba74\uacfc \uc0c8\ub85c\uc6b4 \ud30c\uba74\uc740 \ub300\ube44\uc5d0\uc11c \ucc28\uc774\uac00 \ub098\uace0 \uc6d0\ub798 \uade0\uc5f4\uc758 \uacbd\uacc4\ub294 \uce90\ube44\ud2f0 \ub0b4\ubd80\uc5d0\uc11c \ub69c\ub837\ud55c \ud615\uc0c1\uc73c\ub85c \ud310\ub3c5\ub420 \uc218 \uc788\ub2e4. \uade0\uc5f4\uc774 \ucc98\uc74c\ubd80\ud130 \ud45c\uba74\uc5d0 \uc5f4\ub824 \uc788\uc5c8\ub358 \uacbd\uc6b0\uc5d0\ub294 \uade0\uc5f4 \ud45c\uba74 \uc804\uccb4\uac00 \uc0b0\ud654\ub418\uba70, \ub5a8\uc5b4\uc838 \ub098\uac04 \uc870\uac01\uc740 \uc624\ub798\ub41c \uacb0\ud568\uc73c\ub85c \ud6e8\uc52c \ub354 \uc27d\uac8c \uc2dd\ubcc4\ub41c\ub2e4.<\/p>\n\n\n\n

\ud15c\ud37c \ucde8\uc131\uc740 \ub450 \ubc88\uc9f8 \uc6d0\uc778\uc774\uba70, \ucc3e\uc744 \uade0\uc5f4\uc744 \ub0a8\uae30\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 \ub2e4\ub974\uac8c \ub098\ud0c0\ub09c\ub2e4. \ucd9c\ucc98\uc5d0\uc11c \uc81c\uc2dc\ud558\ub294 \uc0ac\ub840\ub294 \ud55c \uc0c1\uc790 \ub85c\ud2b8\ub85c \uad6c\ub9e4\ud55c \uc138 \uac1c\uc758 \ub9ac\ud551 \ud574\uba38\uac00 \uac01\uac01 \ubcf8\uc9c8\uc801\uc73c\ub85c \ub3d9\uc77c\ud55c \uce69 \ud615\uc0c1\uc73c\ub85c \uac70\uc758 \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \ud30c\uc190\ub41c \uac83\uc774\ub2e4. \uc99d\uac70\ub294 \ud30c\ub2e8 \uc678\uad00\uc774 \uc544\ub2c8\ub77c \uacb0\uc815\ub9bd\uacc4\uc5d0 \uc788\uc5c8\uace0, Rucker’s reagent\ub85c \uc5d0\uce6d\ud558\uc5ec \ub4dc\ub7ec\ub0ac\ub2e4. \ub530\ub77c\uc11c \uc720\uc0ac\ud558\uac8c \ud30c\uc190\ub418\ub294 \uacf5\uad6c \ubc30\uce58\ub294 \uac1c\ubcc4 \uacf5\uad6c\uc758 \uc0ac\uc6a9 \ubc29\uc2dd\ubcf4\ub2e4 \ud574\ub2f9 \ub85c\ud2b8\uc758 \uc5f4\ucc98\ub9ac\ub97c \uc0b4\ud3b4\ubcf4\ub77c\ub294 \uc2e0\ud638\uc774\uba70, \uadf8\ub7ec\ud55c \ud328\ud134\uc744 \ub9cc\ub4e4 \uc218 \uc788\ub294 \ucde8\ud654 \uc720\ud615\uc740 \ub2e4\uc74c\uc5d0 \uc815\ub9ac\ub418\uc5b4 \uc788\ub2e4 \uac15\uc7ac\uc758 \ucde8\ud654 \uc720\ud615<\/a>.<\/p>\n\n\n\n

\uacf5\uad6c\uac15 \uc8fc\ubb38\uc5d0\uc11c \uc774\uac83\uc774 \uc758\ubbf8\ud558\ub294 \ubc14<\/h2>\n\n\n\n

\ud0c0\uaca9 \uacf5\uad6c \uc8fc\ubb38\uc740 \uacbd\ub3c4 \uc218\uce58\uc640 \ud30c\uc190 \ubaa8\ub4dc\ub97c \ud568\uaed8 \uacb0\uc815\ud574\uc57c \ud558\ub294 \uba87 \uc548 \ub418\ub294 \uacbd\uc6b0 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uacbd\ub3c4 \ubc94\uc704\ub294 \uc881\uace0, \uadf8 \ud558\ud55c\uc740 \uc131\ub2a5\ubcf4\ub2e4\ub294 \uacbd\uace0\ub97c \uc8fc\uae30 \uc704\ud574 \uc120\ud0dd\ub418\uba70, \ud0c0\uaca9 \uacf5\uad6c\ub294 \uc9dd\uc774 \uc791\ub3d9\ud558\ub824\uba74 \ud0c0\uaca9\ud558\ub294 \uacf5\uad6c\ubcf4\ub2e4 \uc5f0\ud574\uc57c \ud569\ub2c8\ub2e4. \uc138 \uac00\uc9c0 \ud56d\ubaa9\uc744 \uae30\ub85d\ud574 \ub458 \uac00\uce58\uac00 \uc788\uc2b5\ub2c8\ub2e4. \ud45c\uba74\uacfc \uadf8 \uc544\ub798 3\ubc00\ub9ac\ubbf8\ud130 \uc9c0\uc810\uc758 \uacbd\ub3c4\uc778\ub370, \uc5f0\ud55c \uc2ec\ubd80 \uc704\uc5d0 \uc595\uc740 \uacbd\ud654\uce35\uc774 \uc788\ub294 \uacbd\uc6b0\ub294 \uc804\uccb4 \uacbd\ud654 \uacf5\uad6c\uc640 \ub2e4\ub974\uac8c \uac70\ub3d9\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8 \uacbd\ub3c4 \ub4a4\uc758 \ucda9\uaca9 \uc778\uc131\uc778\ub370, \ubc94\uc704 \uc0c1\ud55c\uc758 \ud45c\uba74\uc740 \ubcc0\ud615\ub418\uc9c0 \uc54a\uc744 \ud0c0\uaca9\uc744 \uacac\ub51c \uc778\uc131\uc774 \ud544\uc694\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc5f4\ucc98\ub9ac \ub85c\ud2b8\uc778\ub370, \ub3d9\uc77c\ud558\uac8c \ud30c\uc190\ub418\ub294 \uacf5\uad6c \ubc30\uce58\ub294 \uc0ac\uc6a9 \uc870\uac74\ubcf4\ub2e4\ub294 \ud15c\ud37c\ub9c1\uc744 \uac00\ub9ac\ud0a4\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc6b0\uc218\ud55c \ub0b4\ucda9\uaca9 \ub4f1\uae09\uacfc \uadf8 \uc5f4\ucc98\ub9ac\ub294 S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac<\/a> \ubc0f \uadf8 \uc774\ud558\uc5d0 \uc788\uc73c\uba70 \uade0\uc5f4 \uc800\ud56d\uc131\uc744 \uc704\ud55c \uacf5\uad6c\uac15<\/a>, \ud574\ub2f9 \ub4f1\uae09\uc774 \ud761\uc218\ud558\ub294 \ucda9\uaca9 \uc5d0\ub108\uc9c0\ub294 \uacf5\uad6c\uac15\uc758 \uc0e4\ub974\ud53c \ucda9\uaca9 \uc2dc\ud5d8<\/a>\uc5d0 \uae30\ub85d\ub418\uc5b4 \uc788\uace0, \ub3d9\uc77c \ucda9\uaca9\uc758 \uad00\ub828 \ub9c8\ubaa8 \uce21\uba74\uc740 \uacf5\uad6c\uc758 \ucda9\uaca9 \ub9c8\ubaa8 \ubc0f \uc2a4\ud3f4\ub9c1<\/a>\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ud30c\uad34\uac00 \uc124\uba85\ub418\uae30 \uc804\uc5d0 \ubd84\ub958\ub418\ub294 \ubc29\uc2dd\uc740 \uc190\uc0c1 \ubaa8\ub4dc \uc2dd\ubcc4 \ucc28\ud2b8<\/a>\uc5d0 \uc788\uc73c\uba70, \ud45c\uba74 \uc790\uccb4\uc758 \ud754\uc801\uc740 \ud30c\ub2e8\uba74 \ud2b9\uc9d5 \ubc0f \uadf8 \uc758\ubbf8<\/a>\ub85c \ud310\ub3c5\ud558\uace0, \uc0ac\uc6a9 \uc804\uc5d0 \uc874\uc7ac\ud588\ub358 \uade0\uc5f4\uc740 \uacf5\uad6c\uac15\uc758 \ub2f4\uae08\uc9c8 \uade0\uc5f4<\/a>\uc5d0 \uc124\uba85\ub418\uc5b4 \uc788\uc73c\uba70, \uc5b4\ub5a4 \uacf5\uad6c\uc5d0 \uc5b4\ub5a4 \uac15\uc774 \uc0ac\uc6a9\ub418\ub294\uc9c0\uc5d0 \ub300\ud55c \ucc38\uc870\ub294 \uacf5\uad6c \uc720\ud615\ubcc4 \uacf5\uad6c \ubc0f \uae08\ud615 \uc7ac\ub8cc<\/a>. \uc124\uacc4\uc5d0\uc11c \uc11c\ube44\uc2a4\uae4c\uc9c0\uc758 \ub354 \ub113\uc740 \uace0\uc7a5 \uc21c\uc11c\ub294 \uc5d0 \uba85\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4 \uacf5\uad6c \ubc0f \uae08\ud615 \uace0\uc7a5 \ubd84\uc11d<\/a>.<\/p>\n\n\n\n

\uc2a4\ud3f4\ub9c1\uc5d0 \ub300\uc751\ud558\uae30 \uc804\uc5d0<\/h3>\n\n\n\n

\ucc38\uc870 \ud398\uc774\uc9c0\uc774\uba70, Aobo Steel\uc758 \uc0ac\uc591\uc774 \uc544\ub2c8\uba70, \uc704\uc758 \uacbd\ub3c4 \ubc94\uc704\ub294 \uba85\uc2dc\ub41c \uc0ac\uc591\uc5d0 \uac8c\uc2dc\ub41c \uac12\uc73c\ub85c, \ud574\ub2f9 \uc0ac\uc591\uc774 \uc801\uc6a9\ub418\ub294 \uacf5\uad6c\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4. \ud574\ub2f9 \ud45c\uc900\uc744 \ubc97\uc5b4\ub09c \uacf5\uad6c \ub610\ub294 \uc218\ub9ac\ub41c \uba74\uc744 \uac00\uc9c4 \uacf5\uad6c\ub294 \uc774 \uc218\uce58\uc758 \uc801\uc6a9\uc744 \ubc1b\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub108\ubb34 \ube68\ub9ac \ub9c8\ubaa8\ub418\uc5c8\ub2e4\ub294 \uc774\uc720\ub85c \ud0c0\uaca9 \uacf5\uad6c\ub97c \ubc94\uc704\ub97c \ucd08\uacfc\ud558\ub294 \uacbd\ub3c4\ub85c \uc7ac\uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uadf8 \ub4a4\uc5d0 \ubc1c\uc0dd\ud558\ub294 \ud30c\uc190\uc740 \uc810\uc9c4\uc801\uc774\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uacf5\uad6c\uac00 \uc774\ubbf8 \uc2a4\ud3f4\ub9c1\ub41c \uacbd\uc6b0, \ub5a8\uc5b4\uc838 \ub098\uc628 \uc870\uac01\uc744 \ubcf4\uad00\ud558\uc2ed\uc2dc\uc624. \ud30c\uad34 \uac80\uc0ac\uac00 \ubc30\uc81c\ub41c \ud6c4\uc5d0\ub294 \uadf8 \uc870\uac01\uc758 \ud30c\ub2e8\uba74\uc774 \ub0a8\uc740 \uc720\uc77c\ud55c \uc99d\uac70\uc77c \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucd9c\ucc98: ASM Handbook, Volume 11, Failure Analysis and Prevention, ASM International, 2002.<\/p>","protected":false},"excerpt":{"rendered":"

Hardness Limits and Spalling in Striking Tools A striking tool is the one tool steel application where the hardness that makes the tool useful is also the hardness that makes it dangerous. Past a certain point the striking face stops deforming and starts fracturing, and the piece that leaves the face carries enough energy to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-21176","page","type-page","status-publish","hentry"],"yoast_head":"\nStriking Tool Hardness Limits and Spalling | Tool Steel | Aobo Steel<\/title>\n<meta name=\"description\" content=\"The hardness window the striking and struck tool specifications set, what a tool does at each end of it, how a striking tool is proved by test, and what a large spall reveals about the steel underneath. Reference data from ASM Handbook Volume 11.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/ko\/striking-tool-hardness-and-spalling\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hardness Limits and Spalling in Striking Tools\" \/>\n<meta property=\"og:description\" content=\"The hardness window the striking and struck tool specifications set, what a tool does at each end of it, how a striking tool is proved by test, and what a large spall reveals about the steel underneath. Reference data from ASM Handbook Volume 11.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/striking-tool-hardness-and-spalling\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-15T17:43:21+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"12\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"Hardness Limits and Spalling in Striking Tools\",\"datePublished\":\"2026-10-07T12:26:17+00:00\",\"dateModified\":\"2026-10-15T17:43:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/\"},\"wordCount\":2505,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/\",\"name\":\"Striking Tool Hardness Limits and Spalling | Tool Steel | Aobo Steel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"datePublished\":\"2026-10-07T12:26:17+00:00\",\"dateModified\":\"2026-10-15T17:43:21+00:00\",\"description\":\"The hardness window the striking and struck tool specifications set, what a tool does at each end of it, how a striking tool is proved by test, and what a large spall reveals about the steel underneath. Reference data from ASM Handbook Volume 11.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/striking-tool-hardness-and-spalling\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hardness Limits and Spalling in Striking Tools\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/ko\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Striking Tool Hardness Limits and Spalling | Tool Steel | Aobo Steel","description":"The hardness window the striking and struck tool specifications set, what a tool does at each end of it, how a striking tool is proved by test, and what a large spall reveals about the steel underneath. Reference data from ASM Handbook Volume 11.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/ko\/striking-tool-hardness-and-spalling\/","og_locale":"ko_KR","og_type":"article","og_title":"Hardness Limits and Spalling in Striking Tools","og_description":"The hardness window the striking and struck tool specifications set, what a tool does at each end of it, how a striking tool is proved by test, and what a large spall reveals about the steel underneath. Reference data from ASM Handbook Volume 11.","og_url":"https:\/\/aobosteel.com\/ko\/striking-tool-hardness-and-spalling\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-10-15T17:43:21+00:00","twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"12\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"Hardness Limits and Spalling in Striking Tools","datePublished":"2026-10-07T12:26:17+00:00","dateModified":"2026-10-15T17:43:21+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/"},"wordCount":2505,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"inLanguage":"ko-KR"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/","url":"https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/","name":"Striking Tool Hardness Limits and Spalling | Tool Steel | Aobo Steel","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"datePublished":"2026-10-07T12:26:17+00:00","dateModified":"2026-10-15T17:43:21+00:00","description":"The hardness window the striking and struck tool specifications set, what a tool does at each end of it, how a striking tool is proved by test, and what a large spall reveals about the steel underneath. Reference data from ASM Handbook Volume 11.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/striking-tool-hardness-and-spalling\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"Hardness Limits and Spalling in Striking Tools"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"\uc5d0\ubc18","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"}]}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"Hardness Limits and Spalling in Striking Tools A striking tool is the one tool steel application where the hardness that makes the tool useful is also the hardness that makes it dangerous. Past a certain point the striking face stops deforming and starts fracturing, and the piece that leaves the face carries enough energy to…","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"Hardness Limits and Spalling in Striking Tools A striking tool is the one tool steel application where the hardness that makes the tool useful is also the hardness that makes it dangerous. Past a certain point the striking face stops deforming and starts fracturing, and the piece that leaves the face carries enough energy to…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/21176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/comments?post=21176"}],"version-history":[{"count":2,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/21176\/revisions"}],"predecessor-version":[{"id":22680,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/21176\/revisions\/22680"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=21176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}