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Tool steel D2
4.8 (13 Reviews) 608 orders
Material type: Metal, High hardness, High strength
Tool Steel D2 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.
Process compatibility
Material Color
Silver gray
Material advantages
D2 steel is perfectly suited for long lasting tools and die applications. It provides excellent abrasion resistance qualities, very high hardness and mild corrosion resistance in the hardened state and good machinability in the annealed state.
Material shortcomings
Poor weldability.
Recommended description
D2 provides an effective combination of wear resistance and toughness, tool performance, price, and a wide variety of product forms.
Properties
Name
Tensile strength 2500MPa
Yield strength 2290MPa
Density 7.695g/cc
Hardness 250HB
Elongation at Break 15.2%
Modulus of elasticity 215GPa
Maximum service temperature 195 - 245 °C
Thermal expansion coefficent 10.3 - 12 10^-6 ºC
Thermal conductivity 29.3 - 31.7 W/(m⋅°C)
Common applications
• Rolls
• Punches
• Dies for blanking, forming, trimming
• Thread rolling
• Shear knives
• Food-processing knives
• Gauges
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