ASTM A182 / A182M UNS K21001

ASTM A182 UNS K21001 is a forging material specification for 0.5% Chromium 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 K21001 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

Grade Symbol UNS Number Alloy Elements Composition %
F36 K21001 1.15 % nickel,
0.65 % copper,
molybdenum,
and columbium 		Carbon 0.10 - 0.17
Manganese 0.80 - 1.20
Phosphorus 0.030 max
Sulfur 0.025 max
Silicon 0.25 - 0.50
Nickel 1.00 - 1.30
Chromium 0.30 max
Molybdenum 0.25 - 0.50
Columbium 0.015 - 0.045
Nitrogen 0.020 max
Aluminium 0.050 max
Copper 0.50 - 0.80
Vanadium 0.02 max

Mechanical Properties

Property Value
Class 1 2
Tensile Strength, min, ksi [MPa] 90 [620] 95.5 [660]
Yield Strength, min, ksi [MPa] 64 [440] 66.5 [460]
Elongation in 2 in. [50mm] or 4D, min, % 15 15
Reduction or Area, min, % -- --
Brinell Hardness Number, HBW 252 max 252 max

Products