ASTM A182 F321H Flange

ASTM A182 F321H flange is made from stainless steel 321H. This material has a higher carbon content compared to standard 321 stainless steel, which results in better high-temperature properties. 

 

Stainless steel 321H flange is a commonly used component in piping systems, heat exchangers, and pressure vessels. It is a popular choice for high-temperature applications because of its excellent corrosion resistance and durability. It can withstand high temperatures up to 1500°F and is suitable for use in acidic and chloride-containing environments.

Stainless steel 321H is a high-temperature material that is ideal for applications where heat resistance is necessary. It is a modification of 321 stainless steel, which contains titanium to stabilize the material against carbide precipitation at high temperatures. The carbon content of 321H provides better creep strength and resistance to sensitization.

The chemical composition between Stainless steel 321H and Stainless steel 321

Grade	UNS	C≤	Mn	P≤	S≤	Si≤	Cr	Mo	Ni
321	S32100	0.08	2	0.045	0.03	1	17.0-19.0	-	9.0-12.0
321H	S32109	0.04-0.1	2	0.045	0.03	1	17.0-19.0	-	9.0-12.0