718H
Standard
ASSAB / 3Cr2MnNiMo
Hardness
Pre-hardened HRC33-38
Introduction
Pre-hardened plastic mold steel supplied at HRC33-38, ready for direct machining without additional heat treatment. Good polishability, texture processing, and weldability. One of the most widely used plastic mold steels.
Applications
Home appliance housing molds, automotive interior molds, general injection molds, blow molds, compression molds.
Chemical composition
| Element | Min | Max | Unit | Note |
|---|---|---|---|---|
| C | 0.28000 | 0.40000 | % | — |
| Si | 0.20000 | 0.80000 | % | — |
| Mn | 0.60000 | 1.00000 | % | — |
| Cr | 1.40000 | 2.00000 | % | — |
| Ni | 0.80000 | 1.20000 | % | — |
| Mo | 0.30000 | 0.55000 | % | — |
A dash means not provided, not zero. Confirm specifications before ordering.