Products Description
P20 pre-hardened plastic die steel, American grade. Widely used in China, this steel has good machinability and mirror grinding performance, factory hardness 30-42HRC, can be directly used for mold processing, and has good dimensional stability characteristics, pre-hardened steel can meet the needs of general use, mold life of up to 50W mold.
Material characteristics
● Uniform hardness, good polishing performance and photoetching performance, good processing performance.
● Vacuum degassing refining treatment of pure steel, suitable for polishing or etching processing plastic molds.
● Pre-hard supply, no need to heat treatment can be directly used for mold processing, shorten the construction period.
● After forging and rolling processing, dense tissue, 100% ultrasonic inspection, no porosity, needle hole defects.
Implementation standards:
ASTMA681-08, JIS G4404-2006, ISO 4957-1999
Main Ingredients (%) :
Carbon (C)0.28 ~ 0.40
Silicon (Si)0.20 ~ 0.80
Manganese (Mn)0.60 ~ 1.00
Chromium (Cr)1.40 ~ 2.00
Molybdenum (Mo)0.30 ~ 0.55
Copper + nickel (Cu+Ni)≤0.75
Phosphorus (P)≤0.03
Sulfur (S)≤0.03
P20 is suitable for TV front shell, telephone, water dispenser, vacuum cleaner and other plastic mold and mold stand; Thermoplastic injection mold, extrusion mold; Thermoplastic blow mold; Heavy duty mold main parts; Cold structural parts. Commonly used in the manufacture of TV shell, washing machine, refrigerator shell, bucket and so on.
Product Picture
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