1.4550 – X6CrNiNb18-10 (347) – 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 1.4550 (347) 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 number1.4550
Steel nameX6CrNiNb18-10
ASTM / UNS347 · S34700
GroupStainless (austenitic)

Equivalents are for guidance; the applicable standard governs.

Which product forms do we supply?

pipeelbowteereducercapflange

Standards

ASME B16.5ASME B16.9ASTM A312EN 10216-5EN 10253-4EN 1092-1

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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