
15CDV6 (Material Number 1.7734) is a low-carbon, high-strength alloy steel. It is famous for its exceptional yield strength and excellent weldability. Unlike many high-strength steels, it does not require intensive heat treatment after welding to maintain its mechanical properties, making it a favorite for complex structural assemblies.
| Feature | Details |
| Material Number | 1.7734 |
| Standard | EN 10268 / AIR 9160 |
| Chemical Composition | Chromium (1.25% 1.50%), Molybdenum (0.80% 1.00%), Vanadium (0.20% 0.30%) |
| Tensile Strength | $980 - 1180 \text{ MPa}$ |
| Yield Strength | $\ge 790 \text{ MPa}$ |
| Weldability | Excellent (no pre/post-heating required in most cases) |
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