china 202 stainless steel tube suppliers 202 steel tube Manufacture SUS329J4L25Cr-6Ni-3Mo-N with island - shaped ferrite phase distribution in austenite phase of the Organization, owing to the complex tissue it organizations very subtle. In addition, due to join the nitrogen to make it solid solution strengthening increases strength, improved corrosion resistance. Due to the composite effect of grain refinement and solid solution strengthening, making strength characteristics such as yield strength dual phase steel and wire rope system better than aoshi system. Anti - stress corrosion cracks of ferrite system and various characteristics of the system of high strength austenitic stainless steel, can be used for storage water tank, oil, sour gas well tube and liquefaction products of the territory's dedicated shipping tubes of corrosion environment.