Austenitic stainless steel material classification: austenitic stainless steel is the most basic elements chromium and nickel alloys, grades are typically about 18% chromium, 8% nickel is a nickel-chromium austenitic stainless steel bomb Zibo mats, often referred to as 18-8 stainless steel. The ratio of chromium and nickel element substantially ensures structure of the steel is stable austenitic. Martensitic stainless steel: 410 and 416 can be heat strengthened, hardness 35 ~ 45HRC, good machining performance for general purpose corrosion resistant stainless steel screws. 416 higher sulfur content, is cutting stainless steel. 420 stainless steel spring washers Tai'an, sulfur? R0.15%, improve the mechanical properties, can be heat strengthened, the maximum value of 53 ~ 58HRC hardness of stainless steel spring washers Qingdao, for applications requiring high strength stainless steel screws. Precipitation hardening stainless steel: 17-4PH, PH15-7Mo, they can get more than the usual 18-8 stainless steel higher strength, they have been used for high strength, corrosion-resistant stainless steel screws. Qingdao stainless steel spring washers, stainless steel spring washers, Jinan Road ground is provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (http://www.daoqinshangmao.com) strong, credible, in Jinan, Shandong and other hardware accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinan Road ground and you work into the brilliant, for a better future! You can also access (http://www.daoqinshangmao.com/supply_details_42448900.html), for more information about the company.