The United Kingdom equivalent of 303 (1.4305) is 303S31 / EN 58M with a 95% composition match.
🇬🇧 United Kingdom equivalent of
3031.4305
Standard: BS · Source: BS 970
British designation
Quick Facts
| Original | 🇬🇧 Equivalent | |
|---|---|---|
| Designation | 303 | 303S31 / EN 58M |
| Material Number | 1.4305 | — |
| Standard | EN 10088-3 | BS |
| Category | Stainless Steel | Stainless Steel |
Frequently Asked Questions
Is 303 the same as 303S31 / EN 58M?
303 (EN 10088-3) and 303S31 / EN 58M (BS) are near-equivalent grades with a 95% composition overlap. Both are stainless grades. Minor differences may exist in alloying element ranges. For most applications, they are interchangeable. Always verify against the applicable specification for safety-critical components.
Can I substitute 303 with 303S31 / EN 58M?
In most cases, yes. The chemical composition ranges overlap significantly (95%). However, verify mechanical property requirements for your specific application, as heat treatment practices may differ between EN 10088-3 and BS standards.
What is the BS equivalent of 303?
The BS equivalent of 303 (1.4305) is 303S31 / EN 58M, specified in BS 970.
Other International Equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | X8CrNiS18-9 (1.4305) | 100% |
Related Comparisons
Data provided for reference only. Always verify against the applicable specification for critical applications. Source: EN 10088-3, BS 970.
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.