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to Properties of steels and cast irons
(submitted by the website administration)
| USA: AISI D2, UK: BD2, Sweden: 2310, Germany: 1.2201, Japan: SKD11 | ||||
| Chemical composition: C=1.55%, Mn=0.3%, Si=0.3%, Cr=12%, Mo=1% | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 7.7 *10³ | kg/m³ | 480.7 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 210 | GPa | 30400 | ksi |
| Thermal expansion (20 ºC) | 10.5*10-6 | ºCˉ¹ | 5.8*10-6 | in/(in* ºF) |
| Specific heat capacity | 461 | J/(kg*K) | 0.11 | BTU/(lb*ºF) |
| Thermal conductivity | 20 | W/(m*K) | 139 | BTU*in/(hr*ft²*ºF) |
| Annealing temperature | 800...850 | ºC | 1800...1850 | ºF |
| Quenching temperature | 980-1100 | ºC | 1740...1800 | ºF |
| Tempering temperature | 175...480 | ºC | 350...900 | ºF |
| Hardness (annealed) | 97 | RB | 97 | RB |
| Hardness (hardened) | 64 | RC | 64 | RC |
| Quenching medium | Oil, air | |||
| Hardening depth | High | |||
| Resistivity to distortion | Very high | |||
| Resistivity to cracking | High | |||
| Machinability | Low | |||
| Toughness | Low | |||
| Wear resistance | Very high | |||
