22MnB5 vs 30CrMo4: 36% composition overlap. Significantly different materials serving different application areas.
22MnB5 vs 30CrMo4
Side-by-side chemical composition and mechanical property comparison.
Overview
22MnB5
1.5528
THE press hardening (hot stamping) boron steel — used in virtually every modern car for B-pillars, bumper beams, and side impact reinforcements. As-delivered: ferritic-pearlitic, UTS 450-750 MPa, formable. After hot stamping + die quenching: fully martensitic, UTS 1300-1650 MPa. Boron (0.002-0.005%) provides critical hardenability at low cost. Usually AlSi or Zn coated to prevent oxidation during austenitizing at 880-950°C.
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.
| 22MnB5 | 30CrMo4 | |
|---|---|---|
| Material Number | 1.5528 | 1.7218 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10083-3 | EN 10083-3 |
Chemical composition (wt%)
| Element | 22MnB5 | 30CrMo4 | Overlap |
|---|---|---|---|
| C | 0.2–0.25% | 0.26–0.33% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 1.1–1.4% | 0.6–0.9% | No overlap |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | 22MnB5 | 30CrMo4 | Unit |
|---|---|---|---|
| tensile_strength | 450–750 | 800–950 | MPa |
| yield_strength | 300–600 | 600–700 | MPa |
| elongation | 12–18 | 14–18 | % |
Compatibility Assessment
22MnB5 and 30CrMo4 have significantly different compositions (36% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 22MnB5 the same as 30CrMo4?
22MnB5 and 30CrMo4 have a 36% composition overlap. They are generally not directly interchangeable.
Can I replace 22MnB5 with 30CrMo4?
Generally not recommended. The compositions differ significantly (36% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 22MnB5 and 30CrMo4?
The main differences are in the following elements: C, Mn, Cr. 22MnB5 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.