DIN 1.2738 steel plate is one kind of plastic mold steel, equivalent to AISI P20+Ni plastic mold tool steel. While Nickel, chromium and molybdenium are the alloying elements for hardness and toughness. 1.2738 tool steel is specially designed for plastic mold industry, especially for big steel mold parts.
- DIN 1.2738 steel plate is usually supplied as pre-hardened/quenched and tempered 280 – 320 HB hardness condition
- With good machinability, DIN 1.2738 steel plate is with better polishability compared to 1.2312 (AISI P20+S).
- Material 1.2738 steel can be through nitrogenation and flame hardening treatment in order to increase the hardness and wearability of mould surface.
- The steel 1.2738 is melted in an electrical furnace and refined with VOD or DH device.
Chemical Composition
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | Mo | Ni | ||||||
| 1.2738 | 0.35 | 0.45 | 1.30 | 1.60 | 0.03 | 0.03 | 0.20 | 0.40 | 1.80 | 2.10 | 0.15 | 0.25 | 0.90 | 1.20 |
Relevant Specifications and Equivalents
| Standard | DIN EN ISO 4957 | ASTM/AISI |
| Grades | 1.2738 | P20+Ni |
Certificate
