16MnCrS5 vs 20MnCr5: 55% composition overlap. Moderate differences, generally not direct substitutes.
16MnCrS5 vs 20MnCr5
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.
20MnCr5
1.7147
Manganese-chromium case-hardening steel with higher core strength than 16MnCr5. Used for heavily loaded gears, shafts, camshafts, and transmission components requiring high surface hardness with tough core. Popular in automotive and heavy machinery.
| 16MnCrS5 | 20MnCr5 | |
|---|---|---|
| Material Number | 1.7139 | 1.7147 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10084 | EN 10084 |
Chemical composition (wt%)
| Element | 16MnCrS5 | 20MnCr5 | Overlap |
|---|---|---|---|
| C | 0.14–0.19% | 0.17–0.22% | Partial |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 1–1.3% | 1.1–1.4% | Partial |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | 16MnCrS5 | 20MnCr5 | Unit |
|---|---|---|---|
| hardness_hrc | 60–62 | 58–62 | HRC |
| tensile_strength | 700–1000 | 900–1200 | MPa |
| yield_strength | 450–700 | — | MPa |
Compatibility Assessment
16MnCrS5 and 20MnCr5 have moderate differences (55% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 16MnCrS5 the same as 20MnCr5?
16MnCrS5 and 20MnCr5 have a 55% composition overlap. They are generally not directly interchangeable.
Can I replace 16MnCrS5 with 20MnCr5?
Generally not recommended. The compositions differ significantly (55% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16MnCrS5 and 20MnCr5?
The main differences are in the following elements: C, Mn, S, Cr. 16MnCrS5 is a Alloy Steel grade, while 20MnCr5 is a Alloy Steel grade.
Related Comparisons
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.