16MnCrS5 vs 17CrNiMo6: 39% composition overlap. Significantly different materials serving different application areas.
16MnCrS5 vs 17CrNiMo6
Side-by-side chemical composition and mechanical property comparison.
Overview
16MnCrS5
1.7139
Free-cutting variant of 16MnCr5 (1.7131) — sulfur addition (0.020-0.040%) for improved machinability on CNC automatics. Same case-hardening properties: surface 60-62 HRC after carburizing. THE high-volume automotive gear steel where machining cost matters. Used for transmission gears, shafts, pinions, and other carburized parts produced on CNC lathes and multi-spindle automatics.
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.
| 16MnCrS5 | 17CrNiMo6 | |
|---|---|---|
| Material Number | 1.7139 | 1.6587 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10084 | EN 10084 |
Chemical composition (wt%)
| Element | 16MnCrS5 | 17CrNiMo6 | 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% | — | — |
Mechanical properties
| Property | 16MnCrS5 | 17CrNiMo6 | Unit |
|---|---|---|---|
| hardness_hrc | 60–62 | 60–63 | HRC |
| tensile_strength | 700–1000 | 1000–1300 | MPa |
| yield_strength | 450–700 | 700–1000 | MPa |
Compatibility Assessment
16MnCrS5 and 17CrNiMo6 have significantly different compositions (39% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 16MnCrS5 the same as 17CrNiMo6?
16MnCrS5 and 17CrNiMo6 have a 39% composition overlap. They are generally not directly interchangeable.
Can I replace 16MnCrS5 with 17CrNiMo6?
Generally not recommended. The compositions differ significantly (39% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16MnCrS5 and 17CrNiMo6?
The main differences are in the following elements: C, Mn, Cr. 16MnCrS5 is a Alloy Steel grade, while 17CrNiMo6 is a Alloy Steel grade.
View full data for each material:
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.