1.2312/P20+S Alloy Steel Plate For Precision Plastic Mold With Thickness 16-125mm
1.2312/P20+S Alloy Steel Plate for Precision Plastic Mold with thickness 16-125mm
1. Features
a. uniform hardness qualitative of Material;
b. No quenching crack danger,Without heat treatment costs that can reduce the tool cost;
c. Excellent polishing performance;
d. Good machining performance;
2. Application:
Mainly used for the degree of thefamily which do not require extreme large plastic moulds, Used as a low melting point of die holder , mould base, etc.
3. Grade
| W.Nr | DIN | AFNOR | AISI/SAE | GB |
| 1.2312 | X40CrMnMoS8-6 | (40CMD8S) | P20+S | 4Cr2MnMo |
4. Chemical composition (%)
| 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 |
5. Phase transition temperature
| Ac1 | 740°C |
| Ms | 310°C |
6. The hardness of delivery
| Prehardened and tempered | HB278-325(950-1100N/mm²) |
7. Heat treatment
| 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 |
8. Delivery: For abundant stock, 15-20 days.For customized products, 30-50 days.
9. Packing: We provide standard export packing or according to customers' request.
| Hot sale products for hot/cold work mould Steel | |||||||||
| STANDARD/GRADE | Flat Bar Size(mm) | Round bar Size(mm) | Technics | ||||||
| DIN | AISM | JIS | GB(China) | Thickness | Width | Length | Diameter | Length | |
| 1.2311 | P20 | PDS-3 | 3Cr2Mo | 10-700 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 | Forged, Hot Rolled |
| 1.2738 | P20+Ni | - | 3Cr2NiMnMo | 10-1100 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 | |
| 1.2379 | D2 | SKD10 | SKD10 | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.2080 | D3 | SKD1 | 3Cr2Mo | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.2083 | 420 | - | 4Cr13 | 10-500 | 155-1200 | 2000-6000 | 20-300 | 3000-6000 | |
| 1.2344 | H13 | SKD61 | 4Cr5MoSiV1 | 10-500 | 155-1600 | 2000-6000 | 20-400 | 3000-6000 | |
| 1.2510 | O1 | SKS3 | 9CrWMn | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.7225 | SAE4140 | SCM440 | 42CrMo | 10-200 | 155-2200 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.2010 | SAE1050 | S50C | 50# | 10-700 | 155-2200 | 3000-6000 | 10-300 | 3000-6000 | Hot Rolled |
| 1.1191 | SAE1045 | S45C | 45# | 10-700 | 155-2200 | 3000-6000 | 10-300 | 3000-6000 | |
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