16MnCrS5 vs 30CrMo4: 48% composition overlap. Significantly different materials serving different application areas.
16MnCrS5 vs 30CrMo4
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.
30CrMo4
1.7218
Low-to-medium carbon Cr-Mo QT steel — lower C than 34CrMo4/42CrMo4 giving better weldability and toughness. THE gas cylinder and pressure vessel grade in Europe (EN ISO 9809). Good hardenability for medium sections. Also used for automotive crankshafts, gears, and high-pressure hydraulic components. AISI 4130 equivalent.
| 16MnCrS5 | 30CrMo4 | |
|---|---|---|
| Material Number | 1.7139 | 1.7218 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10084 | EN 10083-3 |
Chemical composition (wt%)
| Element | 16MnCrS5 | 30CrMo4 | Overlap |
|---|---|---|---|
| C | 0.14–0.19% | 0.26–0.33% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 1–1.3% | 0.6–0.9% | No overlap |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | 16MnCrS5 | 30CrMo4 | Unit |
|---|---|---|---|
| hardness_hrc | 60–62 | — | HRC |
| tensile_strength | 700–1000 | 800–950 | MPa |
| yield_strength | 450–700 | 600–700 | MPa |
Compatibility Assessment
16MnCrS5 and 30CrMo4 have significantly different compositions (48% 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 30CrMo4?
16MnCrS5 and 30CrMo4 have a 48% composition overlap. They are generally not directly interchangeable.
Can I replace 16MnCrS5 with 30CrMo4?
Generally not recommended. The compositions differ significantly (48% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16MnCrS5 and 30CrMo4?
The main differences are in the following elements: C, Mn, S, Cr. 16MnCrS5 is a Alloy Steel grade, while 30CrMo4 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.