The role of chromium in steel is diverse and important, it will form a stable and hard carbide, and has corrosion resistance, its main roles are:
1, improve the hardening ability of steel and carburizing.
2, make the steel at high temperature with high strength.
3, can increase the wear resistance.
4, increase the quenching temperature of steel.
5, can improve the corrosion resistance of steel.
Manganese is also an important element in steel. Its functions and effects are as follows: when adding appropriate amount of manganese, the maximum strength and hardness of steel can be increased with the increase of manganese content;
Manganese has the effect of deoxidation and desulfurization, so manganese can play the forging and plasticity of steel;
The content of manganese in steel is high, which can reduce the quenching temperature of steel.
Can increase the hardening depth of steel, especially in the high carbon content by the hard manganese steel is most significant.
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