carbon tool steel

Cr2 steel adds a certain amount of Cr compared to carbon tool steel, and Cr2 steel is equivalent to ball bearing steel GCr15 in composition. Therefore. Its hardenability, hardness and wear resistance are higher than carbon tool steel, wear resistance and contact fatigue strength are also high.

T7 steel has good toughness and hardness, but poor cutting ability; it is mostly used to manufacture tools that require greater toughness and a certain hardness but do not require very high cutting ability

T8 is a carbon tool steel; hardened plastic mold steel. After quenching and tempering, it has high hardness and wear resistance, but low hot hardness, poor hardenability, easy deformation, low plasticity and strength

T10 steel is a high carbon tool steel with good hardness and wear resistance. It is suitable for making cutting tools and stamping dies. Its advantages include moderate hardness, strong toughness, low production cost, after heat treatment hardness can reach more than 60HRC. However, the hardenability of T10 Steel is low, heat resistance is poor, in the quenching heating is not easy to overheat, still maintain fine grain. In addition, toughness, strength and wear resistance are higher than T7-T9, but the thermal hardness is low, hardenability is still not high, quenching deformation

T11 steel is a kind of low hardenability cold working die steel and high carbon steel with 0.6% carbon. The steel has the advantages of good machinability, high hardness and toughness, but low hardenability and large quenching deformation. Because the steel contains less alloy elements, low tempering resistance, shallow hardening layer, and therefore low load-bearing capacity. With high hardness and wear resistance, grain growth sensitivity is small. The state of supply is hardness ≤207HBW

The performance and use are similar to T8 and T8A, with better hardenability and can be used to manufacture tools with larger cross-sections.