316 and 317, all of which contain alloying elements Mo, so their high-temperature strength and corrosion resistance than 18-8 stainless steel high. Type 321 and Type 347, Type 321 alloy containing more stable elements Ti, 347 type containing Nb Weifang stainless steel fasteners, thereby increasing the resistance to intergranular corrosion of materials. Not annealed or stainless steel pieces at 420 ~ 1013 ℃ after serving apply to welding. Stainless steel screws rust corrosion properties better, there is a strong carry-corrosion, high temperature performance, but also has a strong anti-rust properties. But in the harsh environment still rusty. For example, stainless steel screws in very humid conditions Qingdao stainless steel fasteners, air shower every day, the sun, wind and rain. Long time friends, how many points would certainly born rust. In some instance, acid and chemical contact, thus producing a chemical reaction. Cause corrosion rust. There is already a bad stainless steel screws stainless steel fasteners, such as products made of stainless steel SUS201 screws used on the sea, as is often the time to soak Tai'an stainless steel fasteners, originally SUS201 stainless steel screws itself is not suitable in the sea The use of salt has strong above. Cause corrosion rust. Above sea products in use, is generally recommended to use stainless steel screws SUS316 as 316 stainless steel screws corrosion properties carry more than a bit better. Zaozhuang stainless steel fasteners, stainless steel fasteners, 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 (www.daoqinshangmao.com/supply_details_42227640.html), for more information about the company.