16Mo3 vs C45: 38% composition overlap. Significantly different materials serving different application areas.
16Mo3 vs C45
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.
C45
1.0503
Medium carbon unalloyed quality steel. Good machinability and moderate strength after heat treatment. Widely used for shafts, spindles, pins, studs, and general machine parts.
| 16Mo3 | C45 | |
|---|---|---|
| Material Number | 1.5415 | 1.0503 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10028-2 | EN 10083-2 |
Chemical composition (wt%) — Pro
| Element | 16Mo3 | C45 | Overlap |
|---|---|---|---|
| C | 0.12–0.2% | 0.42–0.5% | No overlap |
| Si | 0–0.35% | 0–0.4% | OK |
| Mn | 0.4–0.9% | 0.5–0.8% | OK |
| P | 0–0.025% | 0–0.03% | OK |
| S | |||
| Cr | |||
| Mo | |||
| Ni |
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Sign up free — 3 comparisons/day freeMechanical properties — Pro
| Property | 16Mo3 | C45 | Unit |
|---|---|---|---|
| Tensile Strength | 440–590 | 630–780 | MPa |
| Yield Strength | ≥ 275 | ≥ 370 | MPa |
| Elongation | ≥ 22 | ≥ 16 | % |
| Elastic Modulus | |||
| Density | |||
| Hardness HB |
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Sign up free — 3 comparisons/day freeCompatibility Assessment
16Mo3 and C45 have significantly different compositions (38% 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 C45?
16Mo3 and C45 have a 38% composition overlap. They are generally not directly interchangeable.
Can I replace 16Mo3 with C45?
Generally not recommended. The compositions differ significantly (38% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16Mo3 and C45?
The main differences are in the following elements: C, Mo. 16Mo3 is a Carbon Steel grade, while C45 is a Carbon Steel grade.
Related Comparisons
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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.