{"id":9347,"date":"2025-08-02T12:06:20","date_gmt":"2025-08-02T04:06:20","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9347"},"modified":"2026-04-26T00:10:15","modified_gmt":"2026-04-25T16:10:15","slug":"m2-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/m2-tool-steel\/","title":{"rendered":"M2 Tool Steel | 1.3343 | SKH51"},"content":{"rendered":"
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Home<\/mark> <\/a>> Tool Steel Catalog<\/mark> <\/u><\/a>> M2 Tool Steel<\/h6><\/div>\n\n\n\n
Aobo Steel | Global Tool Steel Supplier in China<\/em><\/h5><\/div>\n\n\n\n

AISI M2 Tool Steel | 1.3343 | SKH51 Tungsten-Molybdenum High Speed Steel<\/h2><\/div>\n\n\n\n
\u2713100% UT Tested Quality Assurance | SEP 1921-82 Class D\/d Guaranteed<\/h5><\/div>\n\n\n\n
\u2713Highest Wear Resistance & Red-Hardness | Ideal for High-Speed Cutting Tools<\/h5><\/div>\n\n\n\n
\u2713Annealed State Delivery<\/h5><\/div>\n\n\n\n
\u2713Surface: Black Scale, Turned, Mill Finish, or Polished<\/h5><\/div>\n\n\n\n
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Quick Inquiry For M2 Material<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n
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M2 tool steel is a highly versatile, general-purpose high-speed tool steel that provides a good balance of toughness, wear resistance, hot hardness, and heat treatability, making it suitable for a broad spectrum of cutting, forming, and structural applications.<\/p>\n\n\n\n

1. Applications<\/h2>\n\n\n\n
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  • General-Purpose Cutting Tools<\/strong><\/li>\n\n\n\n
  • Single-Point Cutting Tools: <\/strong>They can machine a wide range of materials, including wrought steel, cast steel, cast iron, brass, bronze, copper, and aluminum.<\/li>\n\n\n\n
  • Drills: <\/strong>M2 material is the universal choice for general-purpose drills.<\/li>\n\n\n\n
  • Milling Cutters: <\/strong>More than 70% of free-machining milling cutters are made of M2 material.<\/li>\n\n\n\n
  • Saws: <\/strong>M2 high-speed tool steel is the general-purpose saw material.<\/li>\n\n\n\n
  • Other Applications: <\/strong>M2 hss is used as a core and ejector pin material in plastic injection molding tools. Also used for structural applications, such as machine elements, cams, shafts, spindles, gears, and sprockets.<\/li>\n<\/ul>\n\n\n\n

    2. M2 steel composition<\/h2>\n\n\n\n
    Element<\/td>Carbon (C)<\/td>Chromium (Cr)<\/td>Molybdenum (Mo)<\/td>Tungsten (W)<\/td>Vanadium (V)<\/td>Silicon (Si)<\/td>Manganese (Mn)<\/td>Phosphorus (P)<\/td>Sulfur (S)<\/td><\/tr>
    Composition (%)<\/td>0.78\u20130.88<\/td>3.75\u20134.50<\/td>4.50\u20135.50<\/td>5.50\u20136.75<\/td>1.75\u20132.20<\/td>0.20\u20130.45<\/td>0.15\u20130.40<\/td>\u22640.03<\/td>\u22640.03<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    3. M2 Tool Steel Properties<\/h2>\n\n\n\n

    M2 tool steel stands as a cornerstone in the high-speed steel (HSS) family, and for many good reasons, it\u2019s a popular choice for a wide array of demanding applications. This molybdenum-based HSS, part of the \u201cM\u201d series, delivers a reliable combination of hardness, wear resistance, and toughness, making it a versatile workhorse. <\/p>\n\n\n\n

    3.1 Hardness<\/h3>\n\n\n\n

    The\u00a0M2 tool steel hardness<\/em>\u00a0is very high, and through hardening and tempering, its working hardness ranges from 60 to 65 HRC.<\/p>\n\n\n\n

    3.2 Wear Resistance<\/h3>\n\n\n\n

    Extremely high wear resistance.<\/p>\n\n\n\n

    3.3 Hot Hardness (Tempering Resistance)<\/h3>\n\n\n\n

    Good thermal hardness, meaning that it can maintain its hardness and strength even under high-temperature working conditions. While some specialized HSS grades might offer higher hot hardness, M2 material performs reliably in typical high-temperature tooling scenarios.<\/p>\n\n\n\n

    3.4 Toughness<\/h3>\n\n\n\n

    M2 steel has such high hardness and wear resistance while maintaining good toughness. Tool steel M2 produced by powder metallurgy (P\/M) processes has higher toughness.<\/p>\n\n\n\n

    3.5 Physical Properties<\/h3>\n\n\n\n
    Property<\/td>Value<\/td><\/tr>
    Density<\/td>0.294 lb\/in\u00b3 (8138 kg\/m\u00b3)<\/td><\/tr>
    Specific Gravity<\/td>8.14<\/td><\/tr>
    Modulus of Elasticity<\/td>30 x 10\u2076 psi (207 GPa)<\/td><\/tr>
    Machinability<\/td>50\u201360% of a 1% carbon steel<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    3.6 Mechanical properties<\/h3>\n\n\n\n
    Property<\/td>Value<\/td><\/tr>
    Hardness (Rockwell C)<\/td>60\u201365<\/td><\/tr>
    Ultimate Tensile Strength<\/em><\/td>760\u20132,150 MPa (110,000\u2013310,000 psi)<\/td><\/tr>
    Yield Strength<\/td>3,250 MPa (471,000 psi)<\/td><\/tr>
    Compressive Yield Strength (tempered at 300\u00b0F)<\/td>3,250 MPa (471,000 psi)<\/td><\/tr>
    Modulus of Elasticity (Young\u2019s Modulus)<\/td>200\u2013207 GPa (29\u201330 x 10\u2076 psi)<\/td><\/tr>
    Shear Modulus<\/td>77 GPa (11 x 10\u2076 psi)<\/td><\/tr>
    Poisson\u2019s Ratio<\/td>0.29<\/td><\/tr>
    Impact Toughness<\/td>67 J\/cm\u00b2<\/td><\/tr>
    Abrasion Loss (as-hardened; ASTM G65)<\/td>25.8 mm\u00b3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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    M2 tool steel<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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    Interested in M2 tool steel? Please fill out the form below to contact us immediately!<\/strong><\/p>\n\n\n\n

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