What is ASTM A182 F91?

ASTM A182 F91 is a forging material specification for F91 grade alloy steel and is used for manufacturing bare forgings or forged and machined products for applications involving high temperature service.

What is ASTM A182 material?

ASTM A182 is a standard specification for forged or rolled alloy and stainless steel materials, used for manufacturing pipe flanges, forged fittings, valves, fasteners and parts for high-temperature service applications.

What is ASTM A182 F22?

Grade 22 of the ASTM A182 alloy steel is a low-alloy steel that contains 2.25% chromium. Often used as base metal for clad components, the F22 is also used in the oil patch wellhead applications for products such as hangers, connectors, and block valves, among others.

What is the P91 material?

P91 is a chrome moly alloy metal that contains excellent strength and temperature resistance. It is designed for enhanced creep strength, making it a creep strength enhanced ferritic (CSEF). This metal is made by normalizing at 1050 °C, air cooling to 200 °C, and then tempered through heating to 760 °C.

What does P91 mean?

P91 stands for the metal’s composition of 9% chrome and 1% molybdenum plus vanadium. The chrome increases temperature strength and oxidation resistance. The molybdenum increases the elasticity, resistance to wear, and high temperature creep strength.

What is ASTM A182 grade F91 steel?

ASTM A182 Gr. F91 Alloy Steel High Pressure Forged Fittings ASTM A182 F91 Alloy Steel Forged Fittings This is a low alloy steel with alloys less than 5%. Due to the chemical composition, people also call it as chrome moly alloy.

What are the advantages of A182 F91?

F91 Couplings have highly strength to withstand high pressure. The low carbon content makes socket weld flanges easy to weld. 90 degree Elbows in chrome moly alloy are not easily deformed, and their great yield strength allows them to recover from deformation after processing. Why Alloy Steel A182 F91 is so popular?

What is the equivalent grade for butt weld fittings?

Equivalent Grades for Cr-Mo Alloy F91 As we know, alloy steel A182 F91 is material of forged steel fittings. What’s the equivalent grade for Butt Weld Fittings? It is ASTM A234 WP91.

What are the advantages of F91 couplings?