ASTM A182 / A182M F11 CLASS 3

ASTM A182 F11 CLASS 3 is a forging material specification for F11 CLASS 3 grade stainless 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 grade F11 CLASS 3 specification.

ASTM A182 specification covers requirements such as chemical composition, mechanical properties, heat treatment and other supplementary requirements for 11 CLASS 3 stainless steel forgings and forged products.

Chemical Composition

Grade Symbol UNS Number Alloy Elements Composition %
F11 Class 3 K11572 1.25% chromium,
0.5% molybdenum
Carbon 0.10 - 0.20
Manganese 0.30 - 0.80
Phosphorus 0.040 max
Sulfur 0.040 max
Silicon 0.50 - 1.00
Chromium 1.00 - 1.50
Molybdenum 0.44 - 0.65

Mechanical Properties

Property Value
Tensile Strength, min, ksi [MPa] 75 [515]
Yield Strength, min, ksi [MPa] 45 [310]
Elongation in 2 in. [50mm] or 4D, min, % 20
Reduction or Area, min, % 30
Brinell Hardness Number, HBW 156-207