S355M vs S960QL: 72% composition overlap. Some similarities but notable differences in alloying elements.
S355M vs S960QL
Side-by-side chemical composition and mechanical property comparison.
Overview
S355M
1.8823
Thermomechanically rolled weldable fine-grained structural steel with minimum yield strength 355 MPa. The most widely used TMCP structural steel grade. M designation indicates thermo-mechanical control process delivery. Excellent weldability with low carbon equivalent, eliminating preheating in most cases. Used for bridges, offshore structures, cranes, heavy machinery, wind turbine foundations, and structural hollow sections.
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.
| S355M | S960QL | |
|---|---|---|
| Material Number | 1.8823 | 1.8933 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10025-4 | EN 10025-6 |
Chemical composition (wt%)
| Element | S355M | S960QL | Overlap |
|---|---|---|---|
| C | ≤ 0.16% | ≤ 0.2% | OK |
| Si | ≤ 0.55% | ≤ 0.8% | OK |
| Mn | ≤ 1.6% | ≤ 1.7% | OK |
| P | ≤ 0.035% | ≤ 0.02% | OK |
Mechanical properties
| Property | S355M | S960QL | Unit |
|---|---|---|---|
| tensile_strength | 450–610 | 980–1150 | MPa |
| yield_strength | ≥ 355 | ≥ 960 | MPa |
| elongation | ≥ 22 | ≥ 10 | % |
Compatibility Assessment
S355M and S960QL share some characteristics (72% overlap) but have notable differences. They may be substitutable in some applications but not all. Verify suitability carefully.
Automated assessment based on composition analysis
Frequently Asked Questions
Is S355M the same as S960QL?
S355M and S960QL have a 72% composition overlap. For most purposes, they can be considered similar.
Can I replace S355M with S960QL?
In many cases, yes. The compositions overlap significantly (72%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between S355M and S960QL?
The main differences are in the following elements: overall alloying content. S355M 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.