椭圆齿轮流量计报道：304 是一种通用性的不锈钢，它广泛地用于制作要求良好综合性能(耐腐蚀和成型性)的设备和机件。 According to the elliptical gear flowmeter report: 304 is a versatile stainless steel, which is widely used to make equipment and parts that require good comprehensive performance (corrosion resistance and formability).
301 stainless steel shows obvious work hardening when deformed, and is used in various occasions that require higher strength. 302 stainless steel is essentially a variant of 304 stainless steel with a higher carbon content, which can be made higher in strength by cold rolling. 302B is a stainless steel with high silicon content, which has high resistance to high temperature oxidation. 303 and 303Se are free-cutting stainless steels containing sulfur and selenium, respectively, and are used in applications where free-cutting and surface are mainly required and the lightness is high. 303Se stainless steel is also used to make parts that require hot upsetting, because under these conditions, this stainless steel has good hot workability.
称：304L 是碳含量较低的304不锈钢的变种，用于需要焊接的场合。 Oval gear flowmeter said: 304L is a variant of 304 stainless steel with a lower carbon content, which is used in situations where welding is required. The lower carbon content minimizes the precipitation of carbides in the heat-affected zone near the weld, and the precipitation of carbides may cause intergranular corrosion (weld erosion) of stainless steel in certain environments. 304N is a nitrogen-containing stainless steel. Nitrogen is added to increase the strength of the steel.
快讯305和384 不锈钢含有较高的镍，其加工硬化率低，适用于对冷成型性要求高的各种场合。 Oval gear flowmeter ⎝⎛星力捕鱼⎞⎠letter 305 and 384 stainless steels contain higher nickel and have a lower work hardening rate, which is suitable for various occasions that require high cold formability. 308 stainless steel is used to make electrode. 309, 310, 314, and 330 stainless steels have relatively high nickel and chromium contents, in order to improve the oxidation resistance and creep strength of steel at high temperatures. 30S5 and 310S are variants of 309 and 310 stainless steels. The only difference is that the carbon content is low, in order to minimize the carbides precipitated near the weld. 330 stainless steel has a particularly high resistance to carburizing and thermal shock. Types 316 and 317 stainless steels contain aluminum and are therefore significantly better than 304 stainless steel in marine and chemical industrial environments. Among them, 316 type stainless steel includes low-carbon stainless steel 316L, nitrogen-containing high-strength stainless steel 316N, and free-cutting stainless steel 316F with a high sulfur content. 321, 347, and 348 are stainless steels stabilized with titanium, niobium plus tantalum, and niobium, respectively, and are suitable for welding members used at high temperatures. 348 is a stainless steel suitable for the nuclear power industry. It has certain restrictions on the combined amount of tantalum and drill.