to Tool and die steels
to Properties of steels and cast irons
(submitted by the website administration)
| USA: AISI W1, UK: BW1, Sweden: USA W1, Germany: 1.1654, Japan: SK2 | ||||
| Chemical composition: C=1.0%, Mn=0.35%, Si=0.3% | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 7.83 *10³ | kg/m³ | 488.8 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 205 | GPa | 29700 | ksi |
| Thermal expansion (20 ºC) | 10.4*10-6 | ºCˉ¹ | 5.78*10-6 | in/(in* ºF) |
| Specific heat capacity | 461 | J/(kg*K) | 0.11 | BTU/(lb*ºF) |
| Electric resistivity | 3.0*10-7 | Ohm*m | 3.0*10-5 | Ohm*cm |
| Annealing temperature | 690...710 | ºC | 1280...1420 | ºF |
| Quenching temperature | 760...780 | ºC | 1400...1440 | ºF |
| Tempering temperature | 100...300 | ºC | 210...570 | ºF |
| Hardness (annealed) | 91 | RB | 91 | RB |
| Hardness (hardened) | 65 | RC | 65 | RC |
| Quenching medium | Water | |||
| Hardening depth | Low | |||
| Resistivity to distortion | Low | |||
| Resistivity to cracking | Low | |||
| Machinability | Very high | |||
| Toughness | High | |||
| Wear resistance | Low | |||