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Specifications
1,Very good polishability.2,Good machinability.
3,we are manufacturers with three mills
plastic mould steel 420
1. High Wear Resistance & corrosion resistance Plastic Mould Steel
2. Main application
For plastic moulds with high wear resistance and corrosion resistance requirements; transparent plastic moulds, such as PVC.
3.Manufacturers
Tai Steel, Fushun Steel, Changcheng Steel, Bao Steel, etc.
4.Delivery condition
Conventional or ESR, hot rolling or forging, black surface or milling
Hardness: 31~35HRC,annealed to: HB≤229
5.General
Medium-carbon, high-Chrome, martensitic stainless steel; good corrosion resistance, wear resistance, polishing abilities as well as high strength after heat treatment.
6.Chemical analysis
|
C% |
Mn% |
Si% |
Cr% |
Ni% |
V% |
P% |
S% |
Mo% |
S136 |
0.38 |
0.50 |
0.80 |
13.6 |
|
0.30 |
≤0.03 |
≤0.03 |
|
1.2083 |
0.37~0.44 |
0.30~0.60 |
0.30~0.60 |
13.00~15.00 |
≤0.60 |
0.15~0.35 |
≤0.035 |
0.003 |
0.50~0.70 |
7.Delivery
Acc. to your request—Standard steel bar(sawing)
——non-standard steel bar(sawing)
or Mill deliver condition,without sawing or cutting
8. Heat treatment (for reference)
Annealing: 880centigrade degree, slow cooling
Quenching: 1020centigrade degree~1100centigrade degree; pre-heating on 500 and 800
Tempering: 200centigrade degree~300centigrade degree, air cooling HRC50~52
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