NS336

NS336 belongs to Chinese grade, also called NS3306/GH3625/GH625. NS336 (Inconel625 US grade) is a solid solution reinforced nickel-based deformed high temperature alloy (also contains Cr, Mo, Nb, etc.) with excellent corrosion and oxidation resistance, good tensile properties and fatigue resistance from low temperature to 980°C, and resistance to stress corrosion in salt spray atmosphere. This alloy can resist corrosion in many kinds of harsh acidic environments, especially pitting corrosion and crevice corrosion. It has high strength without heat treatment. It is mainly used in chemical processing, aerospace, turbine engines, pollution control equipment and nuclear reactor equipment.

NS336 application profile and special requirements The alloy is used in the manufacture of engine magazine, guide blade, mounting edge and barrel, fuel main pipe and other parts, has passed the practical application test, the highest use temperature of 950 ℃; alloy cloth.550 ~ 700 ℃ after long-term use there is a certain aging hardening phenomenon, resulting in some decline in the plasticity of the alloy. NS336 process performance and requirements NS336 forming properties of the alloy has good cold and hot forming properties. Ingot forging heating temperature is 1120℃, open forging temperature is not less than 1030℃, stop forging temperature is not less than 930℃; when die forging, the final deformation should be not less than 15%~20%. Rolling heating temperature of 1120 ~ 1160 ℃, the opening rolling temperature of not less than 1050 ℃, stop rolling temperature of not less than 930 ℃, thin plate cold-rolled semi-finished deformation of 25% ~ ~ 30%, finished deformation of not less than 30% of the intermediate and finished quenching temperature of 1100 ℃ to 10 ℃ [1,8]. 5.2 NS336 welding performance of the alloy welding performance is good, can be in a protective atmosphere with tungsten electrode or the alloy as an additive for argon arc welding, but also available brazing connection and resistance seam Ye.