ASTM A182 / A182M UNS S31200

ASTM A182 UNS S31200 is a forging material specification for 13% Chromium (410) alloy steel and is used for manufacturing bare forgings or forged and machined products for applications involving high temperature service. Ferrobend offers forged flanges, fittings, valves bodies, fasteners, plates, bars, rings and similar pressure parts in ASTM A182 UNS S31200 specification.

ASTM A182 specification covers requirements such as chemical composition, mechanical properties, heat treatment and other supplementary requirements for 1 stainless steel forgings and forged products.

Chemical Composition

Identification Symbol UNS Number Alloy Elements Composition %
F50 S31200 25 chromium, 6 nickel,
modified with nitrogen
Carbon 0.030 max
Manganese 2.00 max
Phosphorus 0.045 max
Sulfur 0.030 max
Silicon 1.00 max
Nickel 5.5 - 6.5
Chromium 24.00 - 26.00
Molybdenum 1.20 - 2.00
Nitrogen 0.14 - 0.20

Mechanical Properties

Property Value
Tensile Strength, min, ksi [MPa] 100-130 [690-900]
Yield Strength, min, ksi [MPa] 65 [450]
Elongation in 2 in. [50mm] or 4D, min, % 25
Reduction or Area, min, % 50
Brinell Hardness Number, HBW --