- 规格:
- 齐全
- 价格:
- 合理
- 质量:
- 100%正品
Delivery status
Hardness B.
Chemical composition
According to standard B/~, the chemical composition (mass fraction) of this steel: 3~.,.~.,.,.~.,.~.,.~., and even .3, 3, the rest...
Refer to the corresponding grades
China B standard grade, Russian standard grade B.
Hot processing specifications
Steel ingots: heating temperature ~ ℃, starting temperature ~ ℃, end temperature ~ ℃, sand cooling or pit cooling.
Steel billet: heating temperature ~ ℃, starting temperature ~ ℃, end temperature ~ ℃, sand cooling or pit cooling.
Post-forging annealing specifications
Annealing temperature ~ ℃, insulation 3 ~ furnace cooling to < ℃, air cooling, hardness B, structure of pearlite + carbide.
Isothermal spheroidizing annealing specifications
Annealing temperature ℃, insulation ~ 3 isothermal temperature ℃, insulation ~ furnace cooling to < ℃, air cooling, hardness B, structure is spherical pearlite + carbide.
Quenching specification
Quenching temperature 3~℃, oil cooling or air cooling, hardness.
General quenching and tempering specifications
Quenching temperature ~ ℃, air cooling, tempering temperature ℃, hardness.
Typical application examples
) can be used in hot extrusion dies, hot heading dies, and precision forging dies.
) Used in aluminum, zinc and other light metal die-casting molds.
3) Used to make molds and mandrels for hot extrusion.