1. What kind of material is HPM1?
1. Hitachi Metals HPM1 is the best pre-hardened plastic mold steel, with a hardness of up to HCR37-42 °C, and no heat treatment is required. HPM1 has a special dissolution and good machinability (better at HRC40). Large-scale molds also have well-balanced hardness and processability.
2. Hitachi Metal's Hitachi brand die steel HPM1 is a kind of pre-hardened steel with high rapidity, which has excellent rapidity after special smelting, and is suitable for ordinary molds.
Because it is a pre-hardened steel, it does not require heat treatment (37-4HRC).
3. Non-magnetic steel refers to steel with mild magnetism, which requires a permeability of μ≤ 319×10-h/m, and an electric furnace 20Mn23ALV non-magnetic steel plate, which is widely used in large and medium-sized transformers, electromagnets, and other non-magnetic structural materials.