ASTM A182 F22 Alloy Steel Forged Blind Flange Raised Face B16.5

Comparison of ASTM A182 F22 Alloy Steel and Related Materials

• VS A105: ASTM A105 carbon steel flanges are lower cost and primarily suitable for ambient temperature and medium-to-low pressure applications. However, they are susceptible to oxidation in high-temperature environments, and their high-temperature strength and creep resistance are significantly inferior to those of F22 alloy steel.
• VS F11: F11's high-temperature performance is slightly lower than F22's, and its cost is also slightly lower. It is primarily suitable for applications with temperatures slightly lower than 550°C or pressures.
• VS F91/F92: F91/F92 are higher-grade heat-resistant steels with superior high-temperature strength and creep resistance, making them suitable for ultra-supercritical power plants. However, they are more expensive and have stricter welding and heat treatment requirements.
• VS Stainless Steel Flanges, Such as F304/F316: Stainless steel flanges offer excellent corrosion resistance, but their high-temperature strength, including creep resistance, is generally inferior to that of F22 alloy steel in high-temperature environments of 500°C. They are also more expensive and primarily suitable for applications where corrosion is a primary concern and where temperatures and pressures are not particularly extreme.

ASTM A182 F22 alloy steel blind flanges are primarily used in the following applications

Power industry

Petrochemical industry

Boilers and pressure vessels

Any application requiring reliable, permanent or temporary isolation of piping or equipment in high-temperature and high-pressure environments.