ASTM A182 F44 Flange

ASTM A182 F44 stainless steel flange is a super austenitic stainless steel flange with excellent corrosion resistance and mechanical properties. Composed of elements such as chromium, nickel and molybdenum, this material has high strength and ductility, allowing it to maintain stable performance in a variety of corrosive environments.
The corrosion resistance of ASTM A182 F44 Orifice Flanges is primarily due to its high alloy composition, specifically high levels of chromium and molybdenum. These elements form a strong passivation film in the steel that effectively resists oxidation and corrosion.
In addition to corrosion resistance, the A182 F44 Expander Flange offers excellent mechanical properties. Its high strength and good ductility enable it to withstand high pressure and vibration, ensuring long-term stable operation. This steel typically has a yield strength of over 300 MPa and a high tensile strength, making it suitable for use in a variety of industrial sectors such as oil and gas, chemicals, pharmaceuticals and marine engineering.

omposition, %

Mechanical Properties

ASTM SPECIFICATION

ASTM A182 Threaded Flange

UNS S31254 /254SMO/F44/1.4547

254SMO is a super Austenitic Stainless Steel. It is designed with a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion with strength that is twice that of the stainless steel 300 series.

SMO 254 flanges meet ASTM A182 specifications and are available in sizes from ½ inch to 48 inches. There are different standards for dimensions such as ASME, ANSI, DIN and other international standards.

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