16Mo3 vs ASTM A572 Grade 50: 48% composition overlap. Significantly different materials serving different application areas.
16Mo3 vs ASTM A572 Grade 50
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.
ASTM A572 Grade 50
The most widely used structural steel grade in the United States. 345 MPa (50 ksi) yield strength HSLA steel. Has largely replaced A36 for structural applications due to higher strength-to-weight ratio. Used for building frames, bridges, heavy equipment, and general structural fabrication.
| 16Mo3 | ASTM A572 Grade 50 | |
|---|---|---|
| Material Number | 1.5415 | — |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10028-2 | ASTM A572 |
Chemical composition (wt%)
| Element | 16Mo3 | ASTM A572 Grade 50 | Overlap |
|---|---|---|---|
| C | 0.12–0.2% | 0–0.23% | OK |
| Si | 0–0.35% | 0–0.4% | OK |
| Mn | 0.4–0.9% | 0–1.35% | OK |
| P | 0–0.025% | 0–0.04% | OK |
Mechanical properties
| Property | 16Mo3 | ASTM A572 Grade 50 | Unit |
|---|---|---|---|
| tensile_strength | 440–590 | ≥ 450 | MPa |
| yield_strength | ≥ 275 | ≥ 345 | MPa |
| elongation | ≥ 22 | ≥ 18 | % |
Compatibility Assessment
16Mo3 and ASTM A572 Grade 50 have significantly different compositions (48% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 16Mo3 the same as ASTM A572 Grade 50?
16Mo3 and ASTM A572 Grade 50 have a 48% composition overlap. They are generally not directly interchangeable.
Can I replace 16Mo3 with ASTM A572 Grade 50?
Generally not recommended. The compositions differ significantly (48% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16Mo3 and ASTM A572 Grade 50?
The main differences are in the following elements: overall alloying content. 16Mo3 is a Carbon Steel grade, while ASTM A572 Grade 50 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.