ASTM A182 / A182M UNS K21590
ASTM A182 UNS K21590 is a forging material specification for Chromium - Molybdenum 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 K21590 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 % |
|---|---|---|---|---|
| F22 Class 1 | K21590 | chromium-molybdenum | Carbon | 0.05 - 0.15 |
| Manganese | 0.30 - 0.60 | |||
| Phosphorus | 0.040 | |||
| Sulfur | 0.040 | |||
| Silicon | 0.50 | |||
| Chromium | 2.00 - 2.50 | |||
| Molybdenum | 0.87 - 1.13 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength, min, ksi [MPa] | 60 [415] |
| Yield Strength, min, ksi [MPa] | 30 [205] |
| Elongation in 2 in. [50mm] or 4D, min, % | 20 |
| Reduction or Area, min, % | 35 |
| Brinell Hardness Number, HBW | 170 max |
Products
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Flanges
Sizes : 1/8" to 96"
Pressure Rating : Upto 2500 lbs
Types : Weld Neck, Slip-on, Blind, Threaded, etc.
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Fittings
Sizes : 1/8" to 48"
Ends : Bevelled, SocketWeld, Threaded and Flanged.
Types : Buttweld, Socketweld, Threaded, Block type, etc.
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Valves
Sizes : 1/8" to 96"
End Connection : Buttweld, Flanged, Threaded, etc.
Types : Butterfly, Ball, Gate, Globe, Pinch, etc.
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Fasteners
Sizes : 1/8" to 8" / M3 to M180
Dimensions : DIN / ISO / UNI / ASME and Customized.
Types : Hex Bolts, Stud Bolts, Socket Head Cap Screws, Hex Nuts, Flat Washers, etc.
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Forgings
Size : 50mm to 3000mm
Weight capacity : 30gms to 5000 kgs
Types : Fittings, Flanges, Valves, Rings, Bars, Components, etc.
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Plates
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Bars & Rods
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Rings