MetalTek 254 SMO® Super Austenitic Stainless Steel

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MetalTek 254 SMO® Super Austenitic Stainless Steel
Categories:	Metal; Ferrous Metal; Austenitic; Stainless Steel; Cast Stainless Steel
Material Notes:	Corrosion resistance approaching nickel alloys, especially in chloride service. Produced under license of Avesta Jernverk AB. Applications: Process piping exposed to flue gas and solutions. Information provided by MetalTek
Key Words:	Cast Grade CK3MCuN; Cast ASTM A351, A743, A744; Wrought UNS S31254; Wrought Grade 254 SMO®
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Physical Properties	Metric	English	Comments

Density	8.00 g/cc	0.289 lb/in³	Based on UNS number

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	>= 550 MPa	>= 79800 psi
Tensile Strength, Yield	>= 260 MPa	>= 37700 psi
Elongation at Break	>= 35 %	>= 35 %

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.025 %	<= 0.025 %
Chromium, Cr	19.5 - 20.5 %	19.5 - 20.5 %
Copper, Cu	0.50 - 1.0 %	0.50 - 1.0 %
Iron, Fe	49.535 - 56.32 %	49.535 - 56.32 %	As Balance
Manganese, Mn	<= 1.2 %	<= 1.2 %
Molybdenum, Mo	6.0 - 7.0 %	6.0 - 7.0 %
Nickel, Ni	17.5 - 19.5 %	17.5 - 19.5 %
Nitrogen, N	0.18 - 0.24 %	0.18 - 0.24 %
Silicon, Si	<= 1.0 %	<= 1.0 %

Descriptive Properties
Heat Treatment	Sol. Anneal

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NMETEK059 / 18309

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