1.2767
Data verified1.2767 is a 4% nickel mold and die steel with outstanding toughness and through-hardening in thick sections. It is chosen for large, intricate molds and dies that would crack in leaner steels.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.40–0.50 |
| Si | 0.10–0.40 |
| Mn | 0.20–0.50 |
| Cr | 1.20–1.50 |
| Mo | 0.15–0.35 |
| Ni | 3.80–4.30 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Annealed (also supplied prehardened) |
| Hardness | Up to ~52 HRC hardened; ~300–350 HB prehardened |
| Density | 7.85 g/cm³ |
| Toughness | Exceptional for a mold steel (4% Ni) |
Heat treatment
Harden 840–870 °C air/oil; temper 200–580 °C by target hardness. Air hardening keeps distortion very low.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.2767 |
| aisi | 6F3 type (near) |
| gb | 4CrNi4Mo (near) |
Compare side by side: 1.2767 vs 1.2738 · 1.2767 vs L6
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Large plastic molds, blow molds, die casting dies, cold forming dies, embossing tools, knife bodies.
Processing: Excellent polishability and EDM behavior; the air-hardening response makes it safe for complex cavities. Premium-priced due to nickel content.
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Ask for a quotationVisit NasteelSource: DIN / EN ISO 4957 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.