40CrMoV4-6 vs S355J2W: 52% composition overlap. Moderate differences, generally not direct substitutes.
40CrMoV4-6 vs S355J2W
Side-by-side chemical composition and mechanical property comparison.
Overview
40CrMoV4-6
1.7711
Chromium-molybdenum-vanadium creep-resisting steel for high-temperature fasteners and bolts per EN 10269. Excellent creep resistance up to 540°C with tensile strength 850–1000 MPa after quenching and tempering. Widely used for steam turbine bolts, pressure vessel fasteners, and power generation components. Equivalent to ASTM A193 Grade B16.
S355J2W
1.8965
The most widely used structural weathering steel with minimum yield strength 355 MPa and impact testing at -20°C (J2 designation). Forms a protective patina of stable rust that eliminates the need for painting. Cu, Cr, and P additions provide atmospheric corrosion resistance up to 8 times that of plain carbon steel. Used for unpainted bridges, outdoor sculptures, railway wagons, architectural facades, transmission towers, and containers. Equivalent to ASTM A588 / Corten B.
| 40CrMoV4-6 | S355J2W | |
|---|---|---|
| Material Number | 1.7711 | 1.8965 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10269 | EN 10025-5 |
Chemical composition (wt%)
| Element | 40CrMoV4-6 | S355J2W | Overlap |
|---|---|---|---|
| C | 0.36–0.44% | ≤ 0.16% | No overlap |
| Si | ≤ 0.4% | ≤ 0.5% | OK |
| Mn | 0.45–0.85% | 0.5–1.5% | Partial |
| P | ≤ 0.03% | ≤ 0.03% | OK |
Mechanical properties
| Property | 40CrMoV4-6 | S355J2W | Unit |
|---|---|---|---|
| tensile_strength | 850–1000 | 470–630 | MPa |
| yield_strength | ≥ 640 | ≥ 355 | MPa |
| elongation | ≥ 14 | ≥ 20 | % |
Compatibility Assessment
40CrMoV4-6 and S355J2W have moderate differences (52% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 40CrMoV4-6 the same as S355J2W?
40CrMoV4-6 and S355J2W have a 52% composition overlap. They are generally not directly interchangeable.
Can I replace 40CrMoV4-6 with S355J2W?
Generally not recommended. The compositions differ significantly (52% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 40CrMoV4-6 and S355J2W?
The main differences are in the following elements: C, Mn, Cr. 40CrMoV4-6 is a Alloy Steel grade, while S355J2W 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.