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A182 F51 2205 S31803 flange ring SA 182 f51 flanges

The applications of the flanges include petroleum, petrochemical, oil and gas and other high performing piping systems.

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The F51 duplex flanges without hub shall be manufactured from plate in according to ASTM A240. After hot forging, the duplex F51 flanges shall be cooled to a temperature below 1000¡ãF [538¡ãC] prior to heat treatment. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. ASTM A182 F51 is a forging material specification for 51 grade stainless steel and is used for manufacturing bare forgings or forged and machined products for applications involving high temperature service.

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