4Cr4Mo2WsiV mold steel, 4Cr4Mo2WsiV

规格：

齐全

价格：

合理

质量：

100%正品

Characteristics of Baosteel's hot work die steel material
This steel has been widely used in European and American countries. It has high thermal stability and toughness. Its chromium mass fraction is 3~ and contains a certain amount of molybdenum or tungsten. The toughness of steel is lower than chromium series steel but higher than tungsten series steel. The tempering resistance and thermal stability are higher than chromium series steel but lower than tungsten series steel. In addition to the slightly higher molybdenum content of this steel, the steel's Thermal conductivity and deformation ability are slightly better than tungsten series 3 steel.
Delivery condition
Annealed condition.
Chemical composition
The main chemical composition of the steel (mass fraction):.~
Hot working specifications
Preheating temperature 3~℃, heating temperature ~℃, initial forging temperature ~℃ , final forging temperature ℃, gray cooling after forging or slow cooling in a hot sand pile. Forging requires repeated upsetting and cross-cutting at least three times.
Isothermal annealing specifications
~℃~. Furnace cooling, ~℃~ Furnace cooling to ℃, air cooling out of the furnace.
Quenching and tempering specifications
Preheating temperature ℃, time. Second preheating temperature ℃, time. Quenching temperature ℃, oil cooling, tempering temperature ℃ or ℃, air cooling after insulation.
Typical application examples
) can be used for hot extrusion die steel and mandrel rods.
) is suitable for die-casting moulds.
3) Punch and die for high-speed precision forging.