Knowledge about cr12 die steel and small and medium-sized hot forging die steel products

102 class high-speed die steel

Detailed tool structure drawing is required.

The low hardness of die blanks should be 280BHN.(2 steel/4140 steel, DME#)

The hardness of the inner die part steel of the glue bit should be 48~52HRC, and other useful parts should be treated the same way.

It is recommended to use straight lock or oblique lock.

The following items may or may not be required. That depends on the final output.

The knowledge about small and medium sized hot forging die steel products is described.

The surface temperature of small and medium-sized die forging dies can reach more than 600℃, and the high temperature performance of its 5CrMnMo and 5CrNiMo obviously cannot meet the requirements.

cr12mov die steel processing, steel with high temperature strength, but toughness and thermal fatigue properties are poor.

Therefore, the domestic early development of 2Cr3Mo3VNb, 4Cr3Mo2MnVB (code ER8) and other 3% Cr-3% Mo and 3% Cr-2% Co type in the carbon chromium system of high-strength hot work die steel, which 3Cr3Mo3VNb is based on the amount of carbon required to generate alloy carbide, the composition of 2Cr3Mo3VNb for further adjustment.

The addition of about 3% of metal elements in this steel can not only improve the hardenability of the steel and prevent temper brittleness, but also improve its thermal stability.

And V and Nb for small and medium-sized hot forging dies have the effect of refining the grain and reducing the superheat sensitivity of steel.

The results show that the steel has good quenching and permeability, wide heating temperature range, low sensitivity to superheat, high temperature strength, thermal stability, plastic toughness, hot and cold fatigue properties and thermal wear properties.

Small and medium-sized hot forging dies are used to make stainless steel (2Crl3) and other hot forging dies, bearing concave dies and roll forging dies, and better results are achieved in actual production.