16Mo3 vs S690QL: 51% composition overlap. Moderate differences, generally not direct substitutes.
16Mo3 vs S690QL
Side-by-side chemical composition and mechanical property comparison.
Overview
16Mo3
1.5415
Molybdenum-alloyed pressure vessel steel — THE European Mo-Kesselblech. Mo 0.25-0.35% improves creep resistance and elevated-temperature strength to ~500°C (higher than P265GH at ~400°C). Used for superheater tubes, boiler drums, steam piping, and heat exchangers in power generation. EN 10028-2 + PED.
S690QL
1.8928
High-strength quenched and tempered fine-grain structural steel with minimum yield strength of 690 MPa. Used for heavily loaded structures like mobile cranes, mining equipment, bridges, and pressure vessels.
| 16Mo3 | S690QL | |
|---|---|---|
| Material Number | 1.5415 | 1.8928 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10028-2 | EN 10025-6 |
Chemical composition (wt%)
| Element | 16Mo3 | S690QL | Overlap |
|---|---|---|---|
| C | 0.12–0.2% | 0–0.2% | OK |
| Si | 0–0.35% | 0–0.8% | OK |
| Mn | 0.4–0.9% | 0–1.7% | OK |
| P | 0–0.025% | 0–0.02% | OK |
Mechanical properties
| Property | 16Mo3 | S690QL | Unit |
|---|---|---|---|
| tensile_strength | 440–590 | 770–940 | MPa |
| yield_strength | ≥ 275 | ≥ 690 | MPa |
| elongation | ≥ 22 | ≥ 14 | % |
Compatibility Assessment
16Mo3 and S690QL have moderate differences (51% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 16Mo3 the same as S690QL?
16Mo3 and S690QL have a 51% composition overlap. They are generally not directly interchangeable.
Can I replace 16Mo3 with S690QL?
Generally not recommended. The compositions differ significantly (51% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16Mo3 and S690QL?
The main differences are in the following elements: overall alloying content. 16Mo3 is a Carbon Steel grade, while S690QL is a Carbon Steel grade.
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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.