Jul 15, 2021 · [2] Manganese steel: representative steel grades 40Mn2, 50Mn2. It has overheating sensitivity, high temperature tempering brittleness, water quenching is easy to crack, and the hardenability is higher than that of carbon steel. [3] Silicon-manganese steel: on behalf of the steel types 35SiMn, 42SiMn.
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