Cr12Mo1V1 mold steel

Cr12Mo1V1 mold steel

It is a widely used high carbon and high chromium material internationallyCold work mold steelBelongs toLewandowski steelHas high hardenability, hardenability, and high wear resistance; Good high-temperature oxidation resistance, good rust resistance after quenching and polishing, and minimal heat treatment deformation.

Cr12Mo1V1The use of mold steel andCr12MoVSame. Used for mold parts with higher requirements.

Chemical composition【GB/T1299-12000(Quality score)（%）】

Heat treatment process:

Cr12Mo1V1（D2）Heat treatment process of mold steel

stress relief annealing

After rough machining of the workpiece, heat it up to600~650℃, insulation2hCool down along with the furnace until500℃Take it out of the oven and air cool it.

quenching

The workpiece slowly heats up to600℃, insulation20minPerform the first preheating and raise the temperature after homogenization850℃Keep warm again30minPerform a second preheating and finally raise the temperature to1020~1040℃, insulation25~40minTake it out of the oven and air cool it.

tempering

After quenching, it should be immediately tempered and tempered at least twice, with each holding time not less than2h

Attention: After quenching, it should be tempered in a timely manner to prevent cracking, and surface decarburization should be prevented. The gauge and high-precision mold should be subjected to cryogenic treatment（-70℃）And adopt high temperature tempering to reduce workpiece deformation, high temperature tempering temperature500~560℃Hardness greater than58HRC.

Cr12Mo1V1 mold steel