| Type: | Steel Plate |
|---|---|
| Standard: | ASTM, AISI, GB, JIS, DIN, BS |
| Certification: | ISO, RoHS, IBR |
| Surface Treatment: | Blackface |
| Technique: | Hot Rolled |
| Application: | Mold & Dies |
| Samples: |
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| Customization: |
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Audited Supplier | W.Nr | DIN | AFNOR | AISI/SAE | GB |
| 1.2312 | X40CrMnMoS8-6 | (40CMD8S) | P20+S | 4Cr2MnMo |
| C | Mn | Si | Cr | Mo | S | P |
| 0.35-0.45 | 1.40-1.60 | 0.30-0.50 | 1.80-2.10 | 0.15-0.25 | 0.05-0.10 | ≤0.030 |
| Ac1 | 740°C |
| Ms | 310°C |
| Prehardened and tempered | HB278-325(950-1100N/mm²) |
| Annealing | 1)Heated to720-750°C,Two to four hours heat preservation, 2)Furnace cooling |
| Stress relief | 1)Heated to560-650°C and then two to four hours heat preservation 2)Furnace cooling or air cooling |
| Pre hardened | 1)Preheat to 600-650°C 2)Heated to hardening temperature 840-840°C and heat preservation 3)Oil cooling 4)Hardness:HRC51 |
| Drawing temper | 1)Immediately after quenching 2)When the 580-650°C,with the 1/inch to heat preservation |
Processing
Strict Quality Control
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