1.4903 – X10CrMoVNb9-1 (P91) – pipe, fittings, flanges
In short: Elevated-temperature steel for pressurised high-temperature systems: boilers, steam lines, power plants.
In P91 (1.4903) we supply: pipe, fittings, flanges (ASME B16.5, ASME B16.9, ASTM A335, EN 10216-2). The complete package in one quote, sourced from the mill.
| EN number | 1.4903 |
| Steel name | X10CrMoVNb9-1 |
| ASTM / UNS | P91 · F91 · WP91 |
| Group | Elevated-temperature steels |
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.
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