302 stainless steel is an austenitic stainless steel that has 18% chromium and 8% nickel. Its chemical composition relies heavily on reasonable alloy design to achieve a series of excellent properties.

321 stainless steel is an austenitic stainless steel that has excellent corrosion resistance at room temperature, as well as good high-temperature strength and creep resistance.

330 stainless steel is a high temperature alloy stainless steel , also known as Incoloy 330 or UNS N08330. It is mainly composed of chromium, nickel, iron and other elements, and has excellent high temperature resistance, high strength and corrosion resistance.

305 stainless steel is a common austenitic stainless steel containing elements such as chromium, nickel, and manganese. Chromium is the main anti-corrosion element and can combine with oxygen to form a dense oxide film to protect materials from corrosion. Nickel can improve the material's heat resistance and toughness while reducing its magnetism.

310S stainless steel is austenitic chromium-nickel stainless steel, with good oxidation resistance, corrosion resistance, because of a higher percentage of chromium and nickel, so that it has much better creep strength, can continue to work at high temperatures, with good high temperature resistance.