24CrMoV5-5
1.7733CrMoV nitriding and warm-work steel — Cr 1.2-1.5%, Mo 0.45-0.65%, V 0.25-0.35%. Lower Cr than 30CrMoV9 (2.3-2.7%) but higher Mo — better creep resistance at elevated temperature. Used for warm-work tools (forging dies to 400°C), nitrided piston rings, and power generation components. Also specified in EN 10269 for fasteners at elevated temperature.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | 24CrMoV5-5 / 1.7733 | 1.7733 | 100% |
Sources: EN 10085
Chemical composition comparison (wt%)
Side-by-side: 24CrMoV5-5 (EN 10085) vs 24CrMoV5-5 / 1.7733 (EN) (EN 10085)
| Element | 24CrMoV5-5 (EN 10085) | 24CrMoV5-5 / 1.7733 (EN) | Overlap |
|---|---|---|---|
| C | — | 0.21–0.28% | — |
| Si | — | 0–0.4% | — |
Mechanical properties
Compatibility verdict
24CrMoV5-5 and 24CrMoV5-5 / 1.7733: 100% composition match
Related materials
42CrMo4
1.7225High-strength quenched and tempered chromium-molybdenum steel. Widely used for shafts, gears, crankshafts, connecting rods, and high-strength bolts. Excellent hardenability and good fatigue resistance.
34CrNiMo6
1.6582High-strength quenched and tempered Cr-Ni-Mo steel. Excellent hardenability and toughness, suitable for large cross-sections. Used for heavy-duty shafts, gears, turbine parts, and aerospace components.
16MnCr5
1.7131Low-carbon case-hardening steel with manganese and chromium. Excellent for carburizing to produce a hard, wear-resistant surface with a tough core. Standard choice for gears, camshafts, piston pins, and transmission components.
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