ASTM A182 F22 Alloy Steel Flange Forged Blind 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 Flange 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.