Year1
- 规格：
- 齐全
- 价格：
- 合理
- 质量：
- 100%正品
Delivery condition
Annealed condition.
Chemical composition
The chemical composition (mass fraction) of the steel: 3~.,.,.~3.,.~3.,3.~.,.~.,b.~..
Hot processing specifications
Steel ingots: heating temperature ~ ℃, starting temperature ~ ℃, end temperature ℃, sand cooling and timely annealing after hot processing.
Steel billet: heating temperature ~ ℃, starting temperature ~ 3 ℃, end temperature ℃, sand cooling and timely annealing after hot processing.
Annealing specifications
Furnace cooling at ℃~3, furnace cooling at ℃ to ℃, air cooling after coming out of the furnace.
Isothermal annealing specifications
Furnace cooling at ℃~3, then slow cooling to ℃~, air cooling after coming out of the furnace, hardness ~B.
Low temperature quenching and tempering specifications
After heating and insulation, oil cooling, first tempering temperature ℃, air cooling after insulation, second tempering temperature ℃, insulation.
High temperature quenching and tempering specifications
Quenching temperature ℃, oil cooling, tempering temperature 3 ℃, tempering once each, air cooling, hardness 3~.
Typical application examples
) can be used in bearing inner rings, steel ball hot heading dies, valve hot heading dies, automotive gear high-speed forging dies, pure copper hot extrusion dies, bicycle crank rolling forging dies, etc.
) Suitable for making small and medium-sized forging dies with shallow cavities, working temperature ~℃.
3) It can also be used in copper alloy hot extrusion dies.
) Usually the service life of this steel is 3~ times longer than that of 3 steel.
) is widely used in various hot work dies such as press hot forging dies, hot extrusion dies, and die-casting dies.
It is suitable for making hot extrusion dies and hot forging dies that have high temperatures, long contact time with the workpiece, and are prone to deformation, collapse or thermal wear failure.
WhatsApp
