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Characteristics and Uses of Stainless Steel

2021-11-26 Page view : 25 views
Series 美标ASTM  国标(GB 日表(SUS Nature Use Nature Use
200 201 1Cr17Mn6Ni5N SUS201 It has the characteristics of acid and alkali resistance, high density, no bubbles, no pinholes, etc. It is used to produce high-quality materials for various watch cases and watchband bottom covers. Mainly used to make decorative tubes, industrial tubes, and some shallow stretch products.
202 1Cr18Mn8Ni5N SUS202 Part of the nickel is replaced with Mn and N, thereby obtaining good mechanical properties and corrosion resistance. It is a new type of nickel-saving stainless steel. Its room temperature strength is higher than that of 304, and it has better oxidation resistance and resistance below 800 degrees. Medium temperature intensity Mainly used to make decorative tubes, industrial tubes, and some shallow stretch products.
2205 00Cr22Ni5Mo3N SUS2205 Its Cr, Mo and N elements are relatively narrow, and it is easy to achieve phase balance (that is, the two phases account for about half), which improves the strength, corrosion resistance and welding performance of steel. It is mostly used for high performance requirements and welding. Materials, such as oil and gas pipelines, etc.. Used in heat exchangers and cold showers and devices for oil refining, fertilizers, papermaking, petroleum, chemical industries, etc., which are resistant to seawater and high temperature and concentrated nitric acid.
300 304 1Cr18Ni9


SUS304 As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties. Good hot workability for stamping, bending, etc., no heat treatment hardening phenomenon (non-magnetic, use temperature -196℃~800℃) Food industry, household products (1, 2 types of tableware, kitchen cabinets, indoor pipelines, water heaters, boilers, bathtubs)
304J1 SUS304J1 应Cu should be added for good formability, especially wire drawing and ageing crack resistance, and it can be formed into products with complex shapes. Its corrosion resistance is the same as 304 steel Vacuum flasks, kitchen sinks, pots, pots, insulated lunch boxes, door handles, textile processing machines.
304L 00Cr19Ni10 SUS304L As a low-C 304 steel, its corrosion resistance is similar to that of 304 steel under normal conditions, but after welding or stress relief, its resistance to intergranular corrosion is excellent. It can maintain good corrosion resistance without heat treatment, generally used below 400 (non-magnetic, use temperature -196℃~800℃) It is used in outdoor machinery, building materials, heat-resistant parts and parts with difficult heat treatment requirements in the chemical, coal, and petroleum industries that require high grain boundary corrosion resistance.
321 1Cr18Ni9Ti SUS321 Ti element is added to 304 steel to prevent grain boundary corrosion. Suitable for use at 430℃~900℃ Medical equipment, building materials, chemistry, agriculture, ship parts, nuclear energy industry, aircraft, pipes, boiler drums, auto parts (windshield wipers, mufflers, molded products)
316 0Cr17Ni12Mo2 SUS316 Mo should be added, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength are particularly good, and it can be used under harsh conditions. Excellent work hardening (non-magnetic) Equipment, chemistry, dyes, paper making in sea water. Oxalic acid, fertilizer and other production equipment; photography, food industry, coastal area facilities, ropes, CD rods, bolts, nuts
316L 00Cr17Ni14Mo2 SUS316L As a low-C series of 316 steel, in addition to having the same characteristics as 316 steel, its resistance to intergranular corrosion is excellent In 316 steel applications, products that have special requirements for resisting grain boundary corrosion
309S 0Cr23Ni13Mo2 SUS309s 23Cr-13Ni high-alloy steel stainless steel, excellent corrosion resistance and strength, suitable for parts whose working temperature is 1000℃ Exhaust equipment, heat treatment furnaces and heat exchangers, etc.
310S 0Cr25Ni20Si2 SUS310S 很Very good oxidation resistance, corrosion resistance, high temperature resistance, because of the higher percentage of chromium and nickel, 310S has much better creep strength, can work continuously at high temperatures, and has good high temperature resistance. Boilers, exhaust equipment, heat treatment furnaces, heat exchangers, etc.
400 409L 00Cr12Ti SUS409L The cheapest model. Because of the addition of Ti element, its high temperature corrosion resistance and high temperature strength are better. Ferritic stainless steel (chrome steel) Automobile exhaust pipes, heat exchangers, containers and other products that should not be heat treated after welding
410 1Cr13 SUS410 It is a representative steel of martensitic steel. Although it has high strength, it is not suitable for use in harsh corrosive environments. Its workability is good, and the heat-treated surface is hardened (magnetic) Knives, mechanical parts, petroleum refining devices, bolts, nuts, pump rods, class 1 tableware (knives, forks)
410S 0Cr13 SUS410
420J1 2Cr13 SUS420J1 High hardness after quenching, good corrosion resistance (magnetic) Tableware (knives), turbine blades
420J2 3Cr13 SUS420J2 After quenching, the hardness is higher than that of 420J1 steel (magnetic) Blades, nozzles, valves, rulers, tableware (scissors, knives)
430 1Cr17 SUS430 As a representative steel grade of ferritic steel, low thermal expansion rate, excellent formability and oxidation resistance Heat-resistant appliances, burners, home appliances, class 2 tableware, kitchen sinks, exterior decoration materials, bolts, nuts, CD rods, screens
444 Water tank special board