304 is a versatile stainless steel, it is widely used to produce good overall performance (corrosion resistance and formability) of equipment and parts.301 stainless steel in the deformation showing a significant hardening phenomenon is used to require a higher intensity of various occasions.302 stainless steel is essentially a higher carbon content of 304 stainless steel variant, it may be obtained by cold rolling high strength.302B is a high silicon content of stainless steel, it has a high temperature oxidation resistance.303 and 303Se are cutting stainless steel respectively containing sulfur and selenium, the main requirements for cutting and surface finish of the occasion. 303Se also necessary for the production of stainless steel hot forging of parts, because in such conditions, this steel has good hot workability .
316 stainless rod304L is a low carbon 304 stainless steel variant, for the need for welding applications. Lower carbon content makes it close to the weld heat affected zone to minimize carbide precipitation, and carbide precipitation may lead to stainless steel intergranular corrosion in certain environments (welding erosion ).
Welding 303 Stainless Steel304N is a nitrogen-containing stainless steel, add nitrogen to improve the strength of steel.305 and 384 stainless steel with high nickel, the hardening rate is low, suitable for cold forming requires a variety of occasions.308 stainless steel for the production of electrodes.309,310,314 and 330 stainless steel, nickel-chromium content is higher, in order to improve the steel oxidation resistance and creep strength at high temperatures. The 30S5 and 310S stainless steel but 309 and 310 variants, which differ only low carbon content in order to make the vicinity of the weld to minimize carbide precipitation. 330 stainless steel has a particularly high resistance to carburization and thermal shock resistance.316 and 317 stainless steel containing molybdenum, and thus in the marine and chemical industry environment point of corrosion resistance substantially better than 304 stainless steel. Among them, 316 stainless steel by a variety of low-carbon stainless steel 316L, 316N nitrogen and high strength stainless steel combined with higher sulfur free cutting stainless steel 316F.
904l stainless steel rolex bracelet321,347 and 348 respectively of titanium, niobium plus tantalum, niobium stabilized stainless steel, suitable for welding components used at high temperatures. 348 is a suitable nuclear power industry, stainless steel, tantalum, and the amount of combined drilling has certain limitations.