1.4438 – X2CrNiMo18-15-4 (317L) – pipe, fittings, flanges
In short: Austenitic stainless steel: weldable, corrosion resistant and available across a wide product range. Molybdenum-alloyed and stabilised versions suit more aggressive media.
In 1.4438 (317L) we supply: pipe, fittings, flanges (ASME B16.5, ASME B16.9, ASTM A312, EN 10216-5). The complete package in one quote, sourced from the mill.
| EN number | 1.4438 |
| Steel name | X2CrNiMo18-15-4 |
| ASTM / UNS | 317L · S31703 |
| Group | Stainless (austenitic) |
Equivalents are for guidance; the applicable standard governs.
Which product forms do we supply?
Standards
Related product pages
Send us your material list – one quote for the complete package (pipe, fittings, flanges, gaskets, bolting), sourced direct from manufacturers, no minimum order.
Request a quote