F51 (UNS S31803 / W.Nr. 1.4462)
F51 (UNS S31803 / W.Nr. 1.4462) combines improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength when compared with other stainless alloys. F51 resists chloride environments and sulphide stress corrosion.
Chemical Composition, %
Typical Physical and Mechanical Properties (RT, Annealed)
|Density, g/cm3||Melting Point, ℃||Tensile Strength, MPa||Yield Strength, MPa||ELongation, %||Hardness, HRB|
Available Products and Specifications
|Rod, Bar, Wire and Forgings||ASTM A182|
|Plate, Sheet and Strip||ASTM A312|
|Pipe and Tube||ASTM A167, 240|
The material combines good mechanical strength and ductility with moderate to good corrosion resistance in a variety of environments. This material is generally supplied in the annealed condition giving yield strengths in excess of 65 KSI (450Mpa), this material cannot be hardened by heat treatment but stronger surface strengths can be achieved by cold working.
Typical applications include pumps, valves, pipework, flanges etc together with various applications in the oil and gas, brewing, power generation and chemical engineering industries. In fact this alloy can be used successfully as an alternative to 300 series austenitic stainless steels in almost all applications where higher mechanical strength/lower weight is required.