420 Plastic Mould Steel

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