What material is HPM75?
HPM75 is a non-magnetic die steel, is the Japanese standard steel grade, its chemical composition. HPM75 is a kind of non-magnetic, high hardness, high wear resistance non-magnetic die steel produced by special melting process. It maintains very stable austenitic characteristics in various states and has a very low permeability (μ < 1.01H/m). HPM75 non-magnetic steel has excellent toughness and excellent corrosion resistance in high temperature environment, and is the ideal material for making non-magnetic mold. HPM75 has stable chemical composition, superior performance, high life and no rust. There are two kinds of HPM75 non-magnetic steel factory state: annealed state, hardness 28-30HRC; Pre-hardening, hardness 42-45HRC; The surface treatment hardness of HPM75 can reach 950-1100HV, which can meet the use of different molds. HPM75 is widely used in many fields such as power, rail transit, construction and defense forces. The company now has 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
HPM75 non-magnetic steel properties:
1. High intensity
2. Ultra-low permeability
3. Non-magnetic
4. High hardness
5. Wear resistance
6. Resist rust
7. High service life
8. Stable chemical composition
9. Corrosion resistance
HPM75 non-magnetic steel application:
1. HPM75 steel is suitable for mirror polishing mold, dust cover, TV filter, cosmetics box, transparent food box, etc
2. HPM75 material is suitable for discharge machining mold
3. HPM75 material is suitable for precision corrugated machining molds, office automation equipment, automotive parts
HPM75 non-magnetic steel hardness:
Factory hardness: 300HBW, 450HBW
Nitriding hardness: 65HRC
HPM75 non-magnetic steel Supply status:
Annealed and pre-hardened, round rod, steel plate surface oxide
HPM75 non-magnetic steel heat treatment and metallographic structure:
HPM75 heat treatment process: solid solution 1150-1180℃ water cooling; Aging 650-700℃; Air cooled, hardness 43-45HRC
HPM75 metallographic structure: austenite
