| After-sales Service: | Online Technical Support |
|---|---|
| Warranty: | 1 Year |
| Standard: | ASTM, AISI, GB, JIS, DIN, BS |
| Certification: | ISO, RoHS |
| Surface Treatment: | Milling |
| Technique: | Forged |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier 
| Steel Grade | 1.2083/4Cr13/420 |
| Dimension | Thickness 5-500mm / Diameter 10-500mm |
| Delivery Condition | Pre-harden or Annealed |
| Surface Treatment | Black Surface / Milled Surface |
| Production Condition | Two Sides Cut or Four Sides Cut for Flat Bar |
| Stock Quantity | 2500 tons |
| Ultrasonic Test | Sep1921-84 D/D or E/e with 100% Test |
| Lead Time | 7-10 days |
Plastic Mold Steel DIN 1.2083
1.2083 steel is a martensitic stainless steel with 12% Chromium which is sufficient to give good corrosive resistance properties. It's best corrosive resistance is when hardened and surface is ground or polished. It has good ductility in the annealed condition but can be hardened up to 500HB (highest of the chromium grades). Martensitic Grades are known for high hardness and allowances must be made for poor weldability and usually allowances for a final harden and temper treatment. 420/1.2083 steel is magnetic and welding is not recommended.
Equivalent Grades:
| Standard | AISI/SAE | W.Nr/DIN | JIS | GB |
| Grade | 420 | 1.2083 | SUJ420J2 | 4Cr13 |
Chemical Composition Of 1.2083 (%)
| C | Si | Mn | Mo | P | S | Cr |
| 0.38-0.45 | ≤1.00 | ≤1.00 | ≤1.00 | ≤0.03 | ≤0.03 | 12.00-13.50 |
Heat Treatment of 1.2083 Steel
Annealing: 760 to 800ºC, slow cooling in furnace (10-20ºC/hr), down to approx. 600ºC, cooling in air. Hardness after annealing: max. 230HB.
Stress relieving: approx. 650ºC, slow cooling in furnace. Hold in neutral atmosphere for 1 to 2hours.
Hardening: 1000 to 1030ºC, oil. Quenching: oil. Hot bath at approx. 300ºC. Hardness obtainable, approx. 56 HRC.
Tempering: Slowly heating to tempering temperature right after hardening. Recommended to temper 2 or 3 times.
|
Tempering ºC |
100 |
200 |
300 |
400 |
500 |
|
HRC |
55 |
53 |
52 |
51 |
50 |
* Hardening temperature: 1000ºC, specimen size: dia25mm
Properties:
Well hardening with minimum distortion, very good resistance to wear and compression. In the heat treated condition this steel grade allows a very high polish
Applications:
Inserts and smaller moulds for injection and compression of corrosive plastic materials.
Q1: What do you do for the control of the quality?
A1: Before loading, our products will all be inspected by ultrasonic inspection. Quality Grade conforms to SEP 1921-84 E/e, D/d, C/c as per customer's request.
Q2:: What are your hot-selling products?
A2: S50C, 1.2311, D2/1.2379, H13/1.2344, CR12MOV, DC53, CR8, abundant stock for both plates and rounds. Competitive prices and short lead-time.
Q3: Can we visit your company and factory?
A3: Yes, warmly welcome! We will book the hotel and assign our driver to pick you up at airport when you visit.
Q4: Are you a manufacturer or merely a trader?
A4: We are a group of companies with manufacturer bases and trading companies. We specialized in plastic mold steel, hot work mold steel, cold work mold steel, alloy steel for mechanical, high-speed steel, etc. All materials are of high quality and competitive price. Our advanced equipments such as horizontal sawing machine, vertical sawing machine and milling machine, which allow us to process the goods according to actual need.
Suppliers with verified business licenses
Audited Supplier 
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