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HPM75 is a non-magnetic die steel, is a Japanese standard steel brand, its chemical composition.

HPM75 is a kind of non-magnetic, high hardness, high wear resistance non-magnetic die steel produced by special smelting process. It has very stable austenite characteristics and very low permeability (μ < 1.01H/m) in various states.

HPM75 non-magnetic steel has excellent toughness and corrosion resistance at high temperature, making it an ideal material for making non-magnetic die.

HPM75 chemical composition is stable, superior performance, high life, rust resistance.

HPM75 non-magnetic steel factory state has two kinds: annealing state, hardness 28-30HRC; Pre-hard, hardness 42-45HRC; HPM75 surface treatment hardness up to 950-1100 hV, can meet the use of different molds.

HPM75 is widely used in power, rail transit, construction and defense forces and many other fields.

The company is now a large number of HPM75 non-magnetic steel spot (HPM75 non-magnetic steel round steel, HPM75 non-magnetic steel plate, HPM75 non-magnetic steel hard material, HPM75 non-magnetic steel raw material).

HPM75 non-magnetic steel chemical composition:

HPM75 non-magnetic die steel chemical element content %

C SI MN CR MO V W AL

0.65 0.75 0.80 15 to 17 2-2.5-0.8 0.5 0.5 0.8 2.7 3.3 1.5 2

Hardness of HPM75 non-magnetic steel:

Factory hardness: 300HBW, 450HBW

Nitriding hardness: 65HRC

HPM75 non-magnetic steel supply status:

Annealed and pre-hard, round bar, steel plate surface oxide

Heat treatment and metallographic structure of HPM75 non-magnetic steel:

HPM75 heat treatment process: solution 1150-1180℃ water cooling; Limitation of 650-700 ℃; Air cooled, hardness 43-45HRC

Metallographic structure of HPM75: austenite