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Home Material ASTM A182/A182M-2018
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USA UNS K12822
ASTM
Specification or Grade		 F 1
Corresponding Standard ASTM A182/A182M-2018
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
Classification Alloy Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Mo
Minimum Value - 0.15 0.6 - - 0.44
Maximum Value 0.28 0.35 0.9 0.045 0.045 0.65
Approximate Comparison Table Alloy Tool Steel
China Japan South Korea United States Germany United Kingdom
GB JIS KS ASTM DIN EN/DIN BS EN/BS
W SKS21 STS21 F1 120W4 BF1

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