304 Stainless Steel vs X10CrMoVNb9-1: 25% composition overlap. Significantly different materials serving different application areas.
304 Stainless Steel vs X10CrMoVNb9-1
Side-by-side chemical composition and mechanical property comparison.
Overview
304 Stainless Steel
1.4301
The most widely used austenitic stainless steel. Excellent corrosion resistance, good formability and weldability. Standard choice for food processing, chemical, and architectural applications.
X10CrMoVNb9-1
1.4903
High-chromium creep-resistant martensitic steel equivalent to ASTM Grade 91 (P91/T91/F91). V and Nb additions with controlled N provide exceptional creep rupture strength at temperatures up to 580°C. The foundation steel of modern ultra-supercritical (USC) power plants worldwide. Used for main steam pipes, boiler headers, superheater tubes, and high-temperature pressure components in fossil and nuclear power generation.
| 304 Stainless Steel | X10CrMoVNb9-1 | |
|---|---|---|
| Material Number | 1.4301 | 1.4903 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10216-2 |
Chemical composition (wt%)
| Element | 304 Stainless Steel | X10CrMoVNb9-1 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0.08–0.12% | No overlap |
| Si | 0–1% | 0.2–0.5% | OK |
| Mn | 0–2% | 0.3–0.6% | OK |
| P | 0–0.045% | ≤ 0.02% | OK |
Mechanical properties
| Property | 304 Stainless Steel | X10CrMoVNb9-1 | Unit |
|---|---|---|---|
| tensile_strength | 520–720 | 585–780 | MPa |
| yield_strength | ≥ 210 | ≥ 415 | MPa |
| elongation | ≥ 45 | ≥ 20 | % |
Compatibility Assessment
304 Stainless Steel and X10CrMoVNb9-1 have significantly different compositions (25% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 304 Stainless Steel the same as X10CrMoVNb9-1?
304 Stainless Steel and X10CrMoVNb9-1 have a 25% composition overlap. They are generally not directly interchangeable.
Can I replace 304 Stainless Steel with X10CrMoVNb9-1?
Generally not recommended. The compositions differ significantly (25% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 304 Stainless Steel and X10CrMoVNb9-1?
The main differences are in the following elements: C, Cr. 304 Stainless Steel is a Stainless Steel grade, while X10CrMoVNb9-1 is a Stainless 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.