30NiCrMo16-6 vs S355J2W: 46% composition overlap. Significantly different materials serving different application areas.
30NiCrMo16-6 vs S355J2W
Side-by-side chemical composition and mechanical property comparison.
Overview
30NiCrMo16-6
1.6747
Ultra-high-strength nickel-chromium-molybdenum steel with outstanding through-hardenability for large cross-sections. Achieves tensile strengths of 1080–1270 MPa (dia ≤40mm) with excellent impact toughness. Very high Jominy hardenability (47–55 HRC). Used for heavy-duty crankshafts, connecting rods, bolts, gear shafts, and critical aerospace structural parts. AFNOR equivalent: 35NCD16.
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.
| 30NiCrMo16-6 | S355J2W | |
|---|---|---|
| Material Number | 1.6747 | 1.8965 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10083-3 | EN 10025-5 |
Chemical composition (wt%)
| Element | 30NiCrMo16-6 | S355J2W | Overlap |
|---|---|---|---|
| C | 0.26–0.33% | ≤ 0.16% | No overlap |
| Si | ≤ 0.4% | ≤ 0.5% | OK |
| Mn | 0.5–0.8% | 0.5–1.5% | OK |
| P | ≤ 0.025% | ≤ 0.03% | OK |
Mechanical properties
| Property | 30NiCrMo16-6 | S355J2W | Unit |
|---|---|---|---|
| tensile_strength | 1080–1270 | 470–630 | MPa |
| yield_strength | ≥ 880 | ≥ 355 | MPa |
| elongation | ≥ 10 | ≥ 20 | % |
Compatibility Assessment
30NiCrMo16-6 and S355J2W have significantly different compositions (46% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 30NiCrMo16-6 the same as S355J2W?
30NiCrMo16-6 and S355J2W have a 46% composition overlap. They are generally not directly interchangeable.
Can I replace 30NiCrMo16-6 with S355J2W?
Generally not recommended. The compositions differ significantly (46% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 30NiCrMo16-6 and S355J2W?
The main differences are in the following elements: C, Cr. 30NiCrMo16-6 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.