347 stainless steel is a brand of stainless steel produced according to American ASTM standards. 347 stainless steel is equivalent to 0cr18ni11nb stainless steel in China. 347 stainless steel contains NB to improve intergranular corrosion resistance, with improved strength and no reduction in plasticity. Reduce the thickness of the material. As a structural strength component. It is mainly used for welded parts used at high temperature.

347H austenitic stainless steel with good corrosion resistance, weldability and thermal strength. 347h stainless steel is used for large boiler superheater, reheater, steam pipeline and petrochemical heat exchanger pipe fittings.

(1) It has high high temperature strength and high temperature plasticity
(2) It has excellent oxidation resistance and corrosion resistance
(3) It has good tissue stability
(4) Uniform chemical composition
(5) It has good machinability and weldability
(6) High dimensional accuracy and surface quality

Specification

Chemical Composition