P275NH vs S960QL: 46% composition overlap. Significantly different materials serving different application areas.
P275NH vs S960QL
Side-by-side chemical composition and mechanical property comparison.
Overview
P275NH
1.0487
Weldable fine-grained non-alloy steel for pressure vessels with minimum yield strength 275 MPa. NH designation indicates normalized condition with impact testing at -20°C. Widely used entry-level pressure vessel grade for boilers, storage tanks, heat exchangers, and pipes transporting hot liquids. Good weldability without preheating for most thicknesses.
S960QL
1.8933
Ultra-high-strength quenched and tempered fine-grained structural steel with minimum yield strength 960 MPa. QL designation indicates impact testing at -40°C. Used for mobile cranes, heavy lift equipment, offshore wind turbine towers, mining machinery, and weight-critical structural applications. Weldable with appropriate precautions (preheating, low hydrogen). Dramatically reduces component weight compared to conventional structural steels.
| P275NH | S960QL | |
|---|---|---|
| Material Number | 1.0487 | 1.8933 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10028-3 | EN 10025-6 |
Chemical composition (wt%)
| Element | P275NH | S960QL | Overlap |
|---|---|---|---|
| C | ≤ 0.16% | ≤ 0.2% | OK |
| Si | ≤ 0.4% | ≤ 0.8% | OK |
| Mn | 0.8–1.5% | ≤ 1.7% | OK |
| P | ≤ 0.025% | ≤ 0.02% | OK |
Mechanical properties
| Property | P275NH | S960QL | Unit |
|---|---|---|---|
| tensile_strength | 370–510 | 980–1150 | MPa |
| yield_strength | ≥ 275 | ≥ 960 | MPa |
| elongation | ≥ 24 | ≥ 10 | % |
Compatibility Assessment
P275NH and S960QL 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 P275NH the same as S960QL?
P275NH and S960QL have a 46% composition overlap. They are generally not directly interchangeable.
Can I replace P275NH with S960QL?
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 P275NH and S960QL?
The main differences are in the following elements: overall alloying content. P275NH is a Carbon Steel grade, while S960QL is a Carbon 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.