17CrNiMo6 vs 51CrV4: 38% composition overlap. Significantly different materials serving different application areas.
17CrNiMo6 vs 51CrV4
Side-by-side chemical composition and mechanical property comparison.
Overview
17CrNiMo6
1.6587
Premium CrNiMo case hardening steel for demanding gear applications. Ni 1.2-1.5% + Mo 0.25-0.35% give excellent core toughness and deep hardenability — suitable for large gears up to 400mm ruling section. Surface HRC 60-63 after carburizing. THE wind turbine gearbox steel. Also used for large industrial gearboxes, mining equipment, and heavy truck transmissions.
51CrV4
1.8159
Chromium-vanadium spring steel. The most important European spring steel grade. Excellent fatigue resistance and high elastic limit after heat treatment. Used for coil springs, leaf springs, torsion bars, anti-roll bars, and high-strength fasteners.
| 17CrNiMo6 | 51CrV4 | |
|---|---|---|
| Material Number | 1.6587 | 1.8159 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10084 | EN 10089 |
Chemical composition (wt%)
| Element | 17CrNiMo6 | 51CrV4 | Overlap |
|---|---|---|---|
| C | 0.15–0.21% | 0.47–0.55% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0.5–0.9% | 0.7–1.1% | Partial |
| P | — | 0–0.025% | — |
Mechanical properties
| Property | 17CrNiMo6 | 51CrV4 | Unit |
|---|---|---|---|
| hardness_hrc | 60–63 | 36–42 | HRC |
| tensile_strength | 1000–1300 | 1100–1300 | MPa |
| yield_strength | 700–1000 | ≥ 900 | MPa |
Compatibility Assessment
17CrNiMo6 and 51CrV4 have significantly different compositions (38% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 17CrNiMo6 the same as 51CrV4?
17CrNiMo6 and 51CrV4 have a 38% composition overlap. They are generally not directly interchangeable.
Can I replace 17CrNiMo6 with 51CrV4?
Generally not recommended. The compositions differ significantly (38% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 17CrNiMo6 and 51CrV4?
The main differences are in the following elements: C, Mn, Cr. 17CrNiMo6 is a Alloy Steel grade, while 51CrV4 is a Alloy Steel grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.