16MnCr5 vs 18CrNiMo7-6: 58% composition overlap. Moderate differences, generally not direct substitutes.
16MnCr5 vs 18CrNiMo7-6
Side-by-side chemical composition and mechanical property comparison.
Overview
16MnCr5
1.7131
Low-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.
18CrNiMo7-6
1.6587
Premium Cr-Ni-Mo case-hardening steel for the most demanding gear applications. Excellent core toughness and hardenability for large cross-sections. The standard gear steel for wind turbines, heavy-duty gearboxes, and aerospace gearing.
| 16MnCr5 | 18CrNiMo7-6 | |
|---|---|---|
| Material Number | 1.7131 | 1.6587 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10084 | EN 10084 |
Chemical composition (wt%)
| Element | 16MnCr5 | 18CrNiMo7-6 | Overlap |
|---|---|---|---|
| C | 0.14–0.19% | 0.15–0.21% | Partial |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 1–1.3% | 0.5–0.9% | No overlap |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | 16MnCr5 | 18CrNiMo7-6 | Unit |
|---|---|---|---|
| tensile_strength | 800–1100 | 1050–1350 | MPa |
| yield_strength | ≥ 590 | — | MPa |
| elongation | ≥ 10 | — | % |
Compatibility Assessment
16MnCr5 and 18CrNiMo7-6 have moderate differences (58% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 16MnCr5 the same as 18CrNiMo7-6?
16MnCr5 and 18CrNiMo7-6 have a 58% composition overlap. They are generally not directly interchangeable.
Can I replace 16MnCr5 with 18CrNiMo7-6?
Generally not recommended. The compositions differ significantly (58% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16MnCr5 and 18CrNiMo7-6?
The main differences are in the following elements: C, Mn, Cr. 16MnCr5 is a Alloy Steel grade, while 18CrNiMo7-6 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.