S-7 ESR Mold Steel Data Sheet
Common Tradenames: S-7 XL, S-7 Mold Quality
S-7 ESR is a high purity version of S-7 tool steel that is produced using the electrslag remelt process. This process produces a more uniform microstructure and better microcleanliness, providing the toolmaker with higher polishibility, higher transverse toughness and better consistency in wire EDM operations. S-7 ESR is especially useful in plastic molds requiring a high degree of polishibility.
Chemical Composition
| Carbon | 0.55% |
| Manganese | 0.70% |
| Chromium | 3.25% |
| Molybdenum | 1.40% |
| Vanadium | 0.25% |
| Silicon | 0.35% |
Typical Applications
| Heavy Impact Punches |
| Vinyl Extrusion Dies |
| Plastic Injection Molds |
| Powder Compaction Punches |
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