The United Kingdom equivalent of 420A / X20Cr13 (1.4021) is 420S29 / 420S37 with a 97% composition match.
🇬🇧 United Kingdom equivalent of
420A / X20Cr131.4021
Standard: BS · Source: BS EN 10088-3
British designations
Quick Facts
| Original | 🇬🇧 Equivalent | |
|---|---|---|
| Designation | 420A / X20Cr13 | 420S29 / 420S37 |
| Material Number | 1.4021 | — |
| Standard | EN 10088-3 | BS |
| Category | Stainless Steel | Stainless Steel |
Frequently Asked Questions
Is 420A / X20Cr13 the same as 420S29 / 420S37?
420A / X20Cr13 (EN 10088-3) and 420S29 / 420S37 (BS) are near-equivalent grades with a 97% 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 420A / X20Cr13 with 420S29 / 420S37?
In most cases, yes. The chemical composition ranges overlap significantly (97%). 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 420A / X20Cr13?
The BS equivalent of 420A / X20Cr13 (1.4021) is 420S29 / 420S37, specified in BS EN 10088-3.
Other International Equivalents
Related Comparisons
Data provided for reference only. Always verify against the applicable specification for critical applications. Source: EN 10088-3, BS EN 10088-3.
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.