347h pipe
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347H Seamless pipe / Boiler Tube / Stainless Steel Pipe
TP347H (1cr19ni11nb) is a high carbon Cr Ni austenitic stainless steel containing niobium. Because it contains stabilizing element Nb, it has good resistance to intergranular corrosion and polysulfate intergranular stress corrosion. In acid, alkali, salt and other corrosive media, its corrosion resistance is similar to that of 18-8 austenitic stainless steel containing Ti. Therefore, it is widely used in boiler, power generation, petroleum, chemical industry, synthetic fiber, food, papermaking and other industries. Used for large boiler superheater tube, reheater tube, steam pipeline and petrochemical heat exchanger.
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