In duplex pipe fittings, the ferrite phase and the austenite phase account for about half of its solid solution structure, and the content of the lesser phase generally needs to reach 30%. In the case of low C content, the Cr content is 18%~28%, and the Ni content is 3%~10%. Some duplex pipe fittings also contain alloying elements such as Mo, Cu, Nb, Ti, and N.
DUPLEX STEEL PIPE FITTINGS PROVIDED BY YUHONG
Duplex tube fittings are made from austenitic-ferritic stainless steel, which was designed to deliver higher strength and corrosion resistance than 300 series stainless steel.
Pro in making super duplex pipe fittings, YUHONG GROUP can do ASTM A815/ASME SA815 Duplex Fitting with material grade S31803, S32750, S32760, etc.
DUPLEX STEEL PIPE/TUBE FITTINGS FEATURES
Super duplex fittings have the characteristics of both austenitic and ferritic stainless steel. Compared with ferrite, they have higher plasticity and toughness, no room temperature brittleness, and significantly improved intergranular corrosion resistance and welding performance.
At the same time, super duplex tube fittings also maintain the 475 ℃ brittleness and high thermal conductivity of ferritic stainless steel and have the characteristics of superplasticity.
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