{"id":18375,"date":"2026-09-15T12:39:58","date_gmt":"2026-09-15T04:39:58","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=18375"},"modified":"2026-10-21T11:44:23","modified_gmt":"2026-10-21T03:44:23","slug":"surface-roughness-chart","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/surface-roughness-chart\/","title":{"rendered":"\ud45c\uba74 \uac70\uce60\uae30 \ucc28\ud2b8"},"content":{"rendered":"

\ud45c\uba74 \uac70\uce60\uae30 \ucc28\ud2b8<\/h1>\n\n\n\n

\ud654\uc5fc \uc808\ub2e8 \ubc0f \ud1b1\uc9c8\ubd80\ud130 \ub798\ud551 \ubc0f \uc288\ud37c\ud53c\ub2c8\uc2f1\uae4c\uc9c0 \uac01 \uc0dd\uc0b0 \ubc29\ubc95\uc774 \uac15\uc7ac\uc5d0 \ub0a8\uae30\ub294 Ra \ud45c\uba74 \uc870\ub3c4\uc785\ub2c8\ub2e4. \uac01 \ud589\uc740 \ud1b5\uc0c1\uc801\uc73c\ub85c \uc0dd\uc0b0\ub418\ub294 \ubc94\uc704\uc640 \uc5ec\uc804\ud788 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ub354 \ub113\uc740 \ubc94\uc704\ub97c \ub9c8\uc774\ud06c\ub85c\ubbf8\ud130 \ubc0f \ub9c8\uc774\ud06c\ub85c\uc778\uce58\ub85c \ud45c\uc2dc\ud558\uba70, \uc870\ub3c4 \ub4f1\uae09 \ubc88\ud638\uc640 \ud574\ub2f9 \ucef7\uc624\ud504 \uac12\uc744 \ud568\uaed8 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc0dd\uc0b0 \ubc29\ubc95\uc73c\ub85c \uc0dd\uc131\ub418\ub294 \uac70\uce60\uae30<\/h2>\n\n\n\n

\uc5b4\ub450\uc6b4 \ub9c9\ub300\ub294 \ud574\ub2f9 \uacf5\uc815\uc73c\ub85c \uac00\uacf5\uc5c5\uccb4\uac00 \ud1b5\uc0c1\uc801\uc73c\ub85c \uc720\uc9c0\ud558\ub294 \ubc94\uc704\uc785\ub2c8\ub2e4. \ud68c\uc0c9 \ub9c9\ub300\ub294 \uc720\ub9ac\ud55c \uc870\uac74\uc5d0\uc11c \uac00\ub2a5\ud55c \ub354 \ub113\uc740 \ubc94\uc704\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uac12\uc740 Machinery’s Handbook 28\ud310, \ud45c 1\uc5d0 \uae30\uc7ac\ub41c \ub0b4\uc6a9\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\n
\n\n\n\n50<\/text>\n(2000)<\/text>\n2000<\/text>\n\n25<\/text>\n(1000)<\/text>\n1000<\/text>\n\n12.5<\/text>\n(500)<\/text>\n500<\/text>\n\n6.3<\/text>\n(250)<\/text>\n250<\/text>\n\n3.2<\/text>\n(125)<\/text>\n125<\/text>\n\n1.6<\/text>\n(63)<\/text>\n63<\/text>\n\n0.80<\/text>\n(32)<\/text>\n32<\/text>\n\n0.40<\/text>\n(16)<\/text>\n16<\/text>\n\n0.20<\/text>\n(8)<\/text>\n8<\/text>\n\n0.10<\/text>\n(4)<\/text>\n4<\/text>\n\n0.05<\/text>\n(2)<\/text>\n2<\/text>\n\n0.025<\/text>\n(1)<\/text>\n1<\/text>\n\n0.012<\/text>\n(0.5)<\/text>\n0.5<\/text>\nRa, \ub9c8\uc774\ud06c\ub85c\ubbf8\ud130 (\uad04\ud638 \uc548\uc740 \ub9c8\uc774\ud06c\ub85c\uc778\uce58)<\/text>\nRa, \ub9c8\uc774\ud06c\ub85c\uc778\uce58 (\ud558\ub2e8 \ub208\uae08)<\/text>\n\ud654\uc5fc \uc808\ub2e8<\/text>\n\n\n\uc2a4\ub0b4\uae45<\/text>\n\n\n\ud1b1\uc9c8<\/text>\n\n\n\ud3c9\uc0ad, \uc131\ud615<\/text>\n\n\n\uad50\ub828<\/text>\n\n\n\ud654\ud559 \ubc00\ub9c1<\/text>\n\n\n\uc804\uae30 \ubc29\uc804 \uac00\uacf5<\/text>\n\n\n\ubc00\ub9c1<\/text>\n\n\n\ube0c\ub85c\uce6d<\/text>\n\n\n\ub9ac\ubc0d<\/text>\n\n\n\uc804\uc790 \ube54<\/text>\n\n\n\ub808\uc774\uc800<\/text>\n\n\n\uc804\uae30 \ud654\ud559<\/text>\n\n\n\ubcf4\ub9c1, \uc120\uc0ad<\/text>\n\n\n\ubc30\ub7f4 \ub9c8\uac10<\/text>\n\n\n\uc804\ud574 \uc5f0\uc0ad<\/text>\n\n\n\ub864\ub7ec \ubc84\ub2c8\uc2f1<\/text>\n\n\n\uc5f0\ub9c8<\/text>\n\n\n\ud638\ub2dd<\/text>\n\n\n\uc804\ud574 \uc5f0\ub9c8<\/text>\n\n\n\uc5f0\ub9c8<\/text>\n\n\n\ub798\ud551<\/text>\n\n\n\uc288\ud37c\ud53c\ub2c8\uc2f1<\/text>\n\n\n\uc0ac\ud615 \uc8fc\uc870<\/text>\n\n\n\uc5f4\uac04 \uc555\uc5f0<\/text>\n\n\n\ub2e8\uc870<\/text>\n\n\n\uc601\uad6c \uae08\ud615 \uc8fc\uc870<\/text>\n\n\n\uc778\ubca0\uc2a4\ud2b8\uba3c\ud2b8 \uc8fc\uc870<\/text>\n\n\n\uc555\ucd9c<\/text>\n\n\n\ub0c9\uac04 \uc555\uc5f0, \uc778\ubc1c<\/text>\n\n\n\ub2e4\uc774\uce90\uc2a4\ud305<\/text>\n\n\n\n\ud3c9\uade0 \uc801\uc6a9<\/text>\n\n\ub35c \ube48\ubc88\ud55c \uc801\uc6a9<\/text>\n<\/svg>\n<\/div>\n<\/div>\n\n\n\n

\uc0dd\uc0b0 \ubc29\ubc95\ubcc4 \uac70\uce60\uae30 \ubc94\uc704, \uc6d0\ubcf8 \ucc28\ud2b8\uc5d0\uc11c \uc7ac\uc791\uc131. \uc67c\ucabd\uc5d0\uc11c \uc624\ub978\ucabd\uc73c\ub85c \uac70\uce5c \uac83\uc5d0\uc11c \ub9e4\ub044\ub7ec\uc6b4 \uac83\uc73c\ub85c \uc9c4\ud589\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud504\ub85c\uc138\uc2a4<\/th>\ud3c9\uade0 \uc801\uc6a9, Ra<\/th>\ub35c \ube48\ubc88\ud55c \uc801\uc6a9, Ra<\/th><\/tr><\/thead>
\ud654\uc5fc \uc808\ub2e8<\/td>25 to 12.5 \u00b5m
1000 to 500 \u00b5in<\/td>		50 to 6.3 \u00b5m
2000 to 250 \u00b5in<\/td><\/tr>
\uc2a4\ub0b4\uae45<\/td>25 to 6.3 \u00b5m
1000 to 250 \u00b5in<\/td>		50 to 3.2 \u00b5m
2000 to 125 \u00b5in<\/td><\/tr>
\ud1b1\uc9c8<\/td>25 to 1.6 \u00b5m
1000 to 63 \u00b5in<\/td>		50 to 0.80 \u00b5m
2000 to 32 \u00b5in<\/td><\/tr>
\ud3c9\uc0ad, \uc131\ud615<\/td>12.5 to 1.6 \u00b5m
500 to 63 \u00b5in<\/td>		25 to 0.40 \u00b5m
1000 to 16 \u00b5in<\/td><\/tr>
\uad50\ub828<\/td>6.3 to 1.6 \u00b5m
250 to 63 \u00b5in<\/td>		12.5 to 0.80 \u00b5m
500 to 32 \u00b5in<\/td><\/tr>
\ud654\ud559 \ubc00\ub9c1<\/td>6.3 to 1.6 \u00b5m
250 to 63 \u00b5in<\/td>		12.5 to 0.80 \u00b5m
500 to 32 \u00b5in<\/td><\/tr>
\uc804\uae30 \ubc29\uc804 \uac00\uacf5<\/td>4.5 to 1.6 \u00b5m
180 to 63 \u00b5in<\/td>		12.5 to 0.80 \u00b5m
500 to 32 \u00b5in<\/td><\/tr>
\ubc00\ub9c1<\/td>6.3 to 0.80 \u00b5m
250 to 32 \u00b5in<\/td>		25 to 0.141 \u00b5m
1000 to 5.66 \u00b5in<\/td><\/tr>
\ube0c\ub85c\uce6d<\/td>3.2 to 0.80 \u00b5m
125 to 32 \u00b5in<\/td>		6.3 to 0.40 \u00b5m
250 to 16 \u00b5in<\/td><\/tr>
\ub9ac\ubc0d<\/td>3.2 to 0.80 \u00b5m
125 to 32 \u00b5in<\/td>		6.3 to 0.40 \u00b5m
250 to 16 \u00b5in<\/td><\/tr>
\uc804\uc790 \ube54<\/td>6.3 to 0.80 \u00b5m
250 to 32 \u00b5in<\/td>		6.3 to 0.20 \u00b5m
250 to 8 \u00b5in<\/td><\/tr>
\ub808\uc774\uc800<\/td>6.3 to 0.80 \u00b5m
250 to 32 \u00b5in<\/td>		6.3 to 0.20 \u00b5m
250 to 8 \u00b5in<\/td><\/tr>
\uc804\uae30 \ud654\ud559<\/td>3.2 to 0.20 \u00b5m
125 to 8 \u00b5in<\/td>		12.5 to 0.05 \u00b5m
500 to 2 \u00b5in<\/td><\/tr>
\ubcf4\ub9c1, \uc120\uc0ad<\/td>6.3 to 0.40 \u00b5m
250 to 16 \u00b5in<\/td>		25 to 0.025 \u00b5m
1000 to 1 \u00b5in<\/td><\/tr>
\ubc30\ub7f4 \ub9c8\uac10<\/td>0.80 ~ 0.20 \u00b5m
32 ~ 8 \u00b5in<\/td>		3.2 ~ 0.05 \u00b5m
125 ~ 2 \u00b5in<\/td><\/tr>
\uc804\ud574 \uc5f0\uc0ad<\/td>0.566 ~ 0.20 \u00b5m
22.6 ~ 8 \u00b5in<\/td>		0.80 ~ 0.10 \u00b5m
32 ~ 4 \u00b5in<\/td><\/tr>
\ub864\ub7ec \ubc84\ub2c8\uc2f1<\/td>0.40 ~ 0.20 \u00b5m
16 ~ 8 \u00b5in<\/td>		0.80 ~ 0.10 \u00b5m
32 ~ 4 \u00b5in<\/td><\/tr>
\uc5f0\ub9c8<\/td>1.6 ~ 0.10 \u00b5m
63 ~ 4 \u00b5in<\/td>		6.3 ~ 0.025 \u00b5m
250 ~ 1 \u00b5in<\/td><\/tr>
\ud638\ub2dd<\/td>0.80 ~ 0.10 \u00b5m
32 ~ 4 \u00b5in<\/td>		1.6 ~ 0.025 \u00b5m
63 ~ 1 \u00b5in<\/td><\/tr>
\uc804\ud574 \uc5f0\ub9c8<\/td>0.80 ~ 0.10 \u00b5m
32 ~ 4 \u00b5in<\/td>		1.6 ~ 0.012 \u00b5m
63 ~ 0.5 \u00b5in<\/td><\/tr>
\uc5f0\ub9c8<\/td>0.40 ~ 0.10 \u00b5m
16 ~ 4 \u00b5in<\/td>		0.80 ~ 0.012 \u00b5m
32 ~ 0.5 \u00b5in<\/td><\/tr>
\ub798\ud551<\/td>0.40 ~ 0.05 \u00b5m
16 ~ 2 \u00b5in<\/td>		0.80 ~ 0.012 \u00b5m
32 ~ 0.5 \u00b5in<\/td><\/tr>
\uc288\ud37c\ud53c\ub2c8\uc2f1<\/td>0.20 ~ 0.025 \u00b5m
8 ~ 1 \u00b5in<\/td>		0.80 ~ 0.012 \u00b5m
32 ~ 0.5 \u00b5in<\/td><\/tr>
\uc0ac\ud615 \uc8fc\uc870<\/td>25 to 12.5 \u00b5m
1000 to 500 \u00b5in<\/td>		50 to 6.3 \u00b5m
2000 to 250 \u00b5in<\/td><\/tr>
\uc5f4\uac04 \uc555\uc5f0<\/td>25 to 12.5 \u00b5m
1000 to 500 \u00b5in<\/td>		50 to 6.3 \u00b5m
2000 to 250 \u00b5in<\/td><\/tr>
\ub2e8\uc870<\/td>12.5 ~ 3.2 \u00b5m
500 ~ 125 \u00b5in<\/td>		25 to 1.6 \u00b5m
1000 to 63 \u00b5in<\/td><\/tr>
\uc601\uad6c \uae08\ud615 \uc8fc\uc870<\/td>3.2 ~ 1.6 \u00b5m
125 ~ 63 \u00b5in<\/td>		6.3 to 0.80 \u00b5m
250 to 32 \u00b5in<\/td><\/tr>
\uc778\ubca0\uc2a4\ud2b8\uba3c\ud2b8 \uc8fc\uc870<\/td>3.2 ~ 1.6 \u00b5m
125 ~ 63 \u00b5in<\/td>		6.3 to 0.40 \u00b5m
250 to 16 \u00b5in<\/td><\/tr>
\uc555\ucd9c<\/td>3.2 to 0.80 \u00b5m
125 to 32 \u00b5in<\/td>		12.5 ~ 0.40 \u00b5m
500 ~ 16 \u00b5in<\/td><\/tr>
\ub0c9\uac04 \uc555\uc5f0, \uc778\ubc1c<\/td>3.2 to 0.80 \u00b5m
125 to 32 \u00b5in<\/td>		6.3 to 0.20 \u00b5m
250 to 8 \u00b5in<\/td><\/tr>
\ub2e4\uc774\uce90\uc2a4\ud305<\/td>1.6 ~ 0.80 \u00b5m
63 ~ 32 \u00b5in<\/td>		3.2 ~ 0.40 \u00b5m
125 ~ 16 \u00b5in<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uac70\uce60\uae30 \ub4f1\uae09 N1~N12<\/h2>\n\n\n\n

\uc624\ub798\ub41c \ub3c4\uba74\uacfc \uc0ac\uc591\uc11c\ub294 Ra \uac12 \ub300\uc2e0 \ub4f1\uae09 \ubc88\ud638\ub97c \ud45c\uae30\ud569\ub2c8\ub2e4. \ub4f1\uae09 \ubc88\ud638\ub294 Ra\uc640 \ubc18\ub300 \ubc29\ud5a5\uc73c\ub85c \uc9c4\ud589\ub418\uba70, \uc22b\uc790\uac00 \ub192\uc744\uc218\ub85d \ud45c\uba74\uc774 \ub354 \uac70\uce69\ub2c8\ub2e4. \ucd9c\ucc98, \ud45c 4.<\/p>\n\n\n\n

\ub4f1\uae09<\/th>Ra, \u00b5m<\/th>Ra, \u00b5in<\/th><\/tr><\/thead>
N12<\/td>50<\/td>2000<\/td><\/tr>
N11<\/td>25<\/td>1000<\/td><\/tr>
N10<\/td>12.5<\/td>500<\/td><\/tr>
N9<\/td>6.3<\/td>250<\/td><\/tr>
N8<\/td>3.2<\/td>125<\/td><\/tr>
N7<\/td>1.6<\/td>63<\/td><\/tr>
N6<\/td>0.80<\/td>32<\/td><\/tr>
N5<\/td>0.40<\/td>16<\/td><\/tr>
N4<\/td>0.20<\/td>8<\/td><\/tr>
N3<\/td>0.10<\/td>4<\/td><\/tr>
N2<\/td>0.05<\/td>2<\/td><\/tr>
N1<\/td>0.025<\/td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uc9c0\uc815\ud560 \uad8c\uc7a5 Ra \uac12<\/h2>\n\n\n\n

\ud45c\uc900 Ra \uac12 \uc2dc\ub9ac\uc988 (ISO 1302 \ubc0f \ub3d9\ub4f1\ud55c \uad6d\uac00 \ud45c\uc900). (a)\ub85c \ud45c\uc2dc\ub41c \uac12\uc774 \uad8c\uc7a5 \uac12\uc774\uba70, \uc774 \uc2dc\ub9ac\uc988\uc5d0\uc11c \uac12\uc744 \uc9c0\uc815\ud558\uba74 \ud45c\uc900 \uac70\uce60\uae30 \uc2dc\ud3b8\uc73c\ub85c \ubd80\ud488\uc744 \uce21\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd9c\ucc98, \ud45c 3.<\/p>\n\n\n\n

Ra \uac12\uc758 \uc6b0\uc120 \uacc4\uc5f4, \u00b5m(\uc0c1\ub2e8) \ubc0f \u00b5in(\ud558\ub2e8)<\/th><\/th><\/th><\/th><\/th><\/th><\/th><\/th><\/th><\/th><\/tr><\/thead>
0.012
0.5<\/td>		0.025 (a)<\/sup>
1<\/td>		0.050 (a)<\/sup>
2<\/td>		0.075
3<\/td>		0.10 (a)<\/sup>
4<\/td>		0.125
5<\/td>		0.15
6<\/td>		0.20 (a)<\/sup>
8<\/td>		0.25
10<\/td>		0.32
13<\/td><\/tr>
0.40 (a)<\/sup>
16<\/td>		0.50
20<\/td>		0.63
25<\/td>		0.80 (a)<\/sup>
32<\/td>		1.00
40<\/td>		1.25
50<\/td>		1.60 (a)<\/sup>
63<\/td>		2.0
80<\/td>		2.5
100<\/td>		3.2 (a)<\/sup>
125<\/td><\/tr>
4.0
160<\/td>		5.0
200<\/td>		6.3 (a)<\/sup>
250<\/td>		8.0
320<\/td>		10.0
400<\/td>		12.5 (a)<\/sup>
500<\/td>		15
600<\/td>		20
800<\/td>		25 (a)<\/sup>
1000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

(a) \uad8c\uc7a5 \uac12.<\/p>\n\n\n\n

\ucef7\uc624\ud504, \uac70\uce60\uae30 \uc0d8\ud50c\ub9c1 \uae38\uc774<\/h2>\n\n\n\n

\ucef7\uc624\ud504\ub294 \uae30\uae30\uac00 \ud504\ub85c\ud30c\uc77c\uc744 \uc0d8\ud50c\ub9c1\ud558\ub294 \uae38\uc774\uc785\ub2c8\ub2e4. \ub3c4\uba74\uc5d0 \uba85\uc2dc\ub418\uc9c0 \uc54a\uc740 \uacbd\uc6b0 0.80 mm (0.030 in.) \uac12\uc774 \uc801\uc6a9\ub429\ub2c8\ub2e4. \ucd9c\ucc98, \ud45c 2.<\/p>\n\n\n\n

\ucef7\uc624\ud504, mm<\/th>\ucef7\uc624\ud504, in.<\/th><\/tr><\/thead>
0.08<\/td>0.003<\/td><\/tr>
0.25<\/td>0.010<\/td><\/tr>
0.80<\/td>0.030<\/td><\/tr>
2.5<\/td>0.1<\/td><\/tr>
8.0<\/td>0.3<\/td><\/tr>
25.0<\/td>1.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n