Tool Steel Alloy D2

  • Tool Steel Alloy D2

  • General Characteristics

    D2 tool steel is a versatile high-carbon, high-chromium, air-hardening tool steel that is characterized by a relatively high attainable hardness and numerous, large, chromium rich alloy carbides in the microstructure. These carbides provide good resistance to wear from sliding contact with other metals and abrasive materials. Although other steels with improved toughness or improved wear resistance are available, D2 provides an effective combination of wear resistance and toughness, tool performance, price, and a wide variety of product forms. D2 is also available as an Electro-Slag-Remelted (ESR) product. The remelting process provides improved chemical homogeneity, refinement of carbide size, and the associated improvements in mechanical and fatigue properties. Typical applications for TLS D2 tool steel include rolls, punches, dies for blanking, forming, trimming, and thread rolling, shear knives, food-processing knives and gages.

  • Typical Chemical Composition

    Weight % C Mn Si Cr Ni Mo V Cu S P Fe
    minimum 1.40 — — 11.00 — 0.70 — — — — reminder
    maximum 1.60 0.60 0.60 13.00 0.30 1.20 1.10 0.25 0.030 0.030

  • Physical Properties

    Characteristics English Metric
    Nominal density

    (68°F/20°C)

    		 0.278 lbs/in3 7.70 g/cm3
    Coefficient of thermal

    expansion

    (61 – 62 HRC)

    		 100°F – 500°F

    38°C – 260°C

    		 5.71 micro in/in- °F 10.3 micro m/m- °K
    100°F – 800°F

    38°C – 427°C

    		 6.63 micro in/in- °F 11.9 micro m/m- °K
    100°F – 1000°F

    38°C – 538°C

    		 6.82 micro in/in- °F 12.3 micro m/m- °K
    100°F – 1200°F

    38°C – 649°C

    		 6.83 micro in/in- °F 12.3 micro m/m- °K
    100°F – 1500°F

    38°C – 816°C

    		 6.90 micro in/in- °F 12.4 micro m/m- °K

  • Mechanical Properties

    Hardness – Rockwell C Modulus Charpy Impact (V-Notch)
    Air cooled from

    982°C

    30 minutes

    		 Air cooled

    from

    1010°C

    30 minutes

    		 Air cooled

    from

    1032°C

    30 minutes

    		 Of elasticity

     

    		 Oil quenced

    from 1010°C

    as quenched

    		 Oil quenced

    from 1010°C

    483°C

    Temper

    Temperature

    		 Oil quenced

    from 1010°C

    593°C

    Temper

    Temperature
    GPa Ksi ∙ 103 J ft-lb J ft-lb J ft-lb
    All 62.5 64 63 207 30 10.80 8.00 29.80 22.00 55.60 41.00

  • Specifications

    • ASM – QQ-T-570
    • ASTM – A681
  • Request quote Print

View full Quality Metals catalogue

BROWSE CATALOGUE

BTI is proud to be the exclusive representative of in Israel, the leading company for Modular Profile solutions and related products

Read more
Skip to content