EN 10253-4 — Butt-welding pipe fittings — wrought austenitic and austenitic-ferritic (duplex) stainless steels
EN 10253-4 covers stainless and duplex steel butt-weld fittings — the European counterpart of ASTM A403 and A815.
EN 10253-4 at a glance
| Standard | EN 10253-4 |
|---|---|
| Issued by | CEN (Europe) |
| Product form | Butt-weld fittings |
| Grades on this site | 8 |
EN 10253-4 grades and their ASTM equivalents
| EN designation | Nearest ASTM / ASME grades | UNS | W.Nr |
|---|---|---|---|
| X5CrNi18-10 | ASTM A182 F304, ASTM A312 TP304, ASTM A403 WP304, ASTM A193 B8 Cl.1, ASTM A194 8 | S30400 | 1.4301 |
| X2CrNi18-9 / X2CrNi19-11 | ASTM A182 F304L, ASTM A312 TP304L, ASTM A403 WP304L | S30403 | 1.4307 / 1.4306 |
| X5CrNiMo17-12-2 | ASTM A182 F316, ASTM A312 TP316, ASTM A403 WP316, ASTM A193 B8M Cl.1, ASTM A194 8M | S31600 | 1.4401 |
| X2CrNiMo17-12-2 | ASTM A182 F316L, ASTM A312 TP316L, ASTM A403 WP316L | S31603 | 1.4404 |
| X6CrNiTi18-10 | ASTM A182 F321, ASTM A312 TP321, ASTM A403 WP321 | S32100 | 1.4541 |
| X6CrNiNb18-10 | ASTM A182 F347, ASTM A312 TP347, ASTM A403 WP347 | S34700 | 1.4550 |
| X2CrNiMoN22-5-3 | ASTM A182 F51, ASTM A182 F60 (Duplex 2205), ASTM A815 WPS31803, ASTM A815 WPS32205, ASTM A790 UNS S31803, ASTM A790 UNS S32205 | S31803 | 1.4462 |
| X2CrNiMoN25-7-4 | ASTM A182 F53 (Super Duplex 2507), ASTM A815 WPS32750, ASTM A790 UNS S32750 | S32750 | 1.4410 |
Equivalents are the nearest commonly cited grades. Chemistry, mechanical properties and testing differ between standards — compare them before substituting one for another.
FAQ
EN 10253-4: common questions
What is the ASTM equivalent of EN 10253-4 X5CrNi18-10?
The nearest ASTM grades are ASTM A182 F304, ASTM A312 TP304, ASTM A403 WP304, ASTM A193 B8 Cl.1.
Does Teshi Group supply material to EN 10253-4?
Teshi Group manufactures flanges, fittings, fasteners and valves, and supplies pipes and plates, to ASTM / ASME specifications and to equivalent EN, JIS, GB and IS standards on request, with EN 10204 3.1 certificates. Send your requirement to info@teshigroup.com.
Other butt-weld fittings standards
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