A182 F51 2205 S31803 flange ring offers a high resistance to general
The 21% chromium content is the key to extreme corrosion resistance and strength of the SA 182 f51 flanges. HT PIPE is a leading supplier and manufacturer of the flanges in various scales, shapes and types.
As a result, this is a highly suitable material for applications dealing with environments containing chlorides and and hydrogen sulphide. Nitrogen is added to S31803 duplex flanges to improve this situation, which not only improves corrosion resistance, but also welds well. ASTM A182 F51 flanges refer to pipe flanges made from the forged duplex stainless steel grade UNS S31803 for use in pressure systems.