20NiCrMo2-2 vs S355J2W: 56% composition overlap. Moderate differences, generally not direct substitutes.
20NiCrMo2-2 vs S355J2W
Side-by-side chemical composition and mechanical property comparison.
Overview
20NiCrMo2-2
1.6523
Nickel-chromium-molybdenum case-hardening steel — the base grade of the 8620 family. Good weldability, toughness, and machinability. Case hardness up to HRC 60–63 with core strength 700–1100 MPa after carburizing and quenching. Used for gears, shafts, pinions, piston pins, and camshafts in automotive, gearbox, and general mechanical engineering. Equivalent to AISI 8620 and BS 805M20.
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.
| 20NiCrMo2-2 | S355J2W | |
|---|---|---|
| Material Number | 1.6523 | 1.8965 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10084 | EN 10025-5 |
Chemical composition (wt%)
| Element | 20NiCrMo2-2 | S355J2W | Overlap |
|---|---|---|---|
| C | 0.17–0.23% | ≤ 0.16% | No overlap |
| Si | ≤ 0.4% | ≤ 0.5% | OK |
| Mn | 0.65–0.85% | 0.5–1.5% | OK |
| P | ≤ 0.025% | ≤ 0.03% | OK |
Mechanical properties
| Property | 20NiCrMo2-2 | S355J2W | Unit |
|---|---|---|---|
| tensile_strength | 700–1100 | 470–630 | MPa |
| yield_strength | ≥ 500 | ≥ 355 | MPa |
| elongation | ≥ 10 | ≥ 20 | % |
Compatibility Assessment
20NiCrMo2-2 and S355J2W have moderate differences (56% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 20NiCrMo2-2 the same as S355J2W?
20NiCrMo2-2 and S355J2W have a 56% composition overlap. They are generally not directly interchangeable.
Can I replace 20NiCrMo2-2 with S355J2W?
Generally not recommended. The compositions differ significantly (56% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 20NiCrMo2-2 and S355J2W?
The main differences are in the following elements: C, Cr. 20NiCrMo2-2 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.