Cr12Mo1V1 is a high carbon and high chromium cold work mold steel widely used internationally. It belongs to ledeburite steel. It has high hardenability, hardenability, and wear resistance. High-temperature oxidation resistance is good. Good corrosion resistance after quenching and polishing. Heat treatment deformation is small.
Cr12Mo1V1 Worldwide equivalents
|country / region||USA||German||Japan||China||ISO|
|Standard||ASTM A681||DIN 17350||JIS G4404||GB/T 1299||ISO 4957|
Cr12Mo1V1 Steel Material Chemical Composition
Cr12Mo1V1 Mechnical Properties
|Quenching||≥59HRC||Modulus of elasticity||207000MPa|
|Quality constant pressure hot melt Cp||461J/(kg·K)|
|Coefficient of expansion/℃－1||10.5×10－6||11.5×10－6||11.9×10－6||12.2×10－6|
Heat treatment process
After the workpiece is rough-processed, it is heated to 600~650°C and kept for 2h. When the furnace temperature is cooled to 500°C, the furnace is cooled by air.
When the workpiece is slowly heated to 600°C, it is warmed up for the first time by keeping it warm for 20 minutes. When the temperature rises to 850°C, keep it warm for another 30 minutes. Carry out the second preheating, and finally heat up to 1020~1040℃, keep it for 25~40 minutes, and finally air-cooled out of the furnace.
It should be tempered immediately after quenching, and the tempering should be at least twice, and the holding time should be at least 2 hours each time.
Cr12Mo1V1 is suitable for the manufacture of various high-precision, long-life cold-work dies, cutting tools, and measuring tools. For example, punching dies with complex shapes. Cold extrusion dies.