Seamless tube
431 seamless tube
Seamless tube in 431 / 1.4057. Chemistry and W.Nr. are on the grade page — this page is about form, diameter and delivery. We source the material from European mill partners, cut to your size and ship with EN 10204/3.1.
- Delivery conditions
- annealed or hardened
Delivery
431 / 1.4057 round bar – Ø20–200 mm. Seamless tube in 431 / 1.4057 is sourced from European mill partners. We cut to your dimensions — from a single piece to larger series, with no minimum charge, so you do not have to take a full commercial length. Typical condition: annealed or hardened. EN 10204/3.1 can be supplied on the grade — state certificate and condition on the enquiry. 3.2 is ordered before we lock the material.
International designations
International designations are comparable or often cross-referenced — not automatically identical. Chemical composition, mechanical properties, condition and certificate must be checked. The certificate carries the name and W.Nr. the mill has issued.
- EN: X17CrNi16-2
- W.Nr.: 1.4057
- AISI/SAE: 431
- UNS: S43100
- JIS: SUS431
- SS (discontinued): 2321
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Send your enquiry
State grade, dimensions and quantity — or attach a drawing. We reply with a quote.