M202 steel has been heat treated and has a uniform hardness of 278-311HB, 29-33HRC. It will never change shape when made into a mold. It has excellent cutting performance and polishing performance. It is suitable for electric corrosion operations. It can be flame hardened, and the surface can be chromium plated and nitrided. C Carbon Cr Chromium W cnc machining Tungsten Mn Manganese Si Silicon V Vanadium
0.95 0.5 0.5 1.1 0.3 0.1 M202 factory specifications: pre-hardened to 950-1050N/mm²(29-33HRC).
M202 uses: plastic molds of all sizes, and can be used as mold bases for tin, lead, and die-casting aluminum molds.
M202 forging: cooling in furnace at 1050-850℃.
M202 mass recovery: Cool in furnace at 850-900℃.
M202 stress relief: After the heat is even, stay in the furnace for 1-2 hours to cool.
M202 quenching: oil 840-860℃ or air: 860-880℃. Stay for at least 10 minutes. If the thickness is more than 20mm, it will take 1/2 minute for every 1mm, so the hardness is about 54HRC.
M202 tempering: stay at least 1 hour during tempering, and 1 hour longer for every 20mm thicker than 20mm. Dimensions: Flat (MM)
76X20-26-32-40-45-50-65
105X20-26-32-40-45-50-65
130X20-26-32-40-45-50-65-80
Link to this article：What is M202 steel? What are the applications of M202 steel?
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