| Model | Types | Characteristic | Use |
| 301(17cr-7ni) | Austenitic steel | Compared with 304 steel, the content of Cr and Ni is less, the tensile strength and hardness are higher during cold working, non-magnetic, but magnetic after cold working. | Train, aircraft, conveyor belt, vehicle, bolt, spring, screen |
| 301L(17Cr-7Ni-0.1N) | Austenitic steel | On the basis of grain boundary, the corrosion resistance of steel 301 is improved; The strength deficiency caused by the reduction of C content is compensated by adding N element to ensure the strength of the steel. | Railway vehicle frame and exterior decoration materials |
| 304(18Cr-8Ni) | Austenitic steel | As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Stamping, bending and other hot workability are good, and there is no heat treatment hardening phenomenon (if there is no magnetism, use the temperature range of – 196 ℃ ~ 800 ℃). | Household products (Class 1 and 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, silencers, molded products), medical appliances, building materials, chemistry, food industry, agriculture, ship parts |
| 304L(18Cr-8Ni) | Austenitic steel | As a Low-C 304 steel, its corrosion resistance is similar to that of 304 steel in general, but its resistance to grain boundary corrosion is excellent after welding or stress relief; It can also maintain good corrosion resistance without heat treatment, and the service temperature is – 196 ℃ ~ 800 ℃. | It is used in the field of building materials and parts with high heat resistance and chemical corrosion resistance. |
| 304Cu(13Cr-7.7Ni-2Cu) | Austenitic steel | Due to the addition of Cu, it has good formability, especially wire drawing and aging crack resistance, so it can form products with complex shapes; Its corrosion resistance is the same as 304. | Thermos bottle, kitchen sink, pot, pot, insulated lunch box, door handle, textile processing machine. |
| 304N1(18Cr-8Ni-N) | Austenitic steel | On the basis of adding 304 elements, the thickness of steel is reduced, the content of Mn and S is reduced, and the strength of steel is improved. | Components, street lamps, water storage tanks, water pipes |
| 304N2(18Cr-8Ni-N) | Austenitic steel | Compared with 304, N and Nb are added as high-strength steel for structural members. | Components, street lamps, water storage tanks |
| 316(18Cr-12Ni-2.5Mo) | Austenitic steel | It has good corrosion resistance under high temperature and atmospheric conditions; Excellent work hardening (non-magnetic). | Equipment used in seawater, chemical, dye, papermaking, oxalic acid, fertilizer and other production equipment; Photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts |
| 316L(18Cr-12Ni-2.5Mo) | Austenitic steel | As a Low-C series of 316 steel, in addition to having the same characteristics as 316 steel, it has excellent grain boundary corrosion resistance. | In the application of 316 steel, products with special requirements for grain boundary corrosion resistance |
| 321(18Cr-9Ni-Ti) | Austenitic steel | Adding Ti to 304 steel to prevent grain boundary corrosion; It is suitable for use at 430 ℃ ~ 900 ℃. | Aircraft, exhaust pipe, boiler drum |
| 409L(11.3Cr-0.17Ti) | Iron cable steel | Due to the addition of Ti, it has good high temperature corrosion resistance and high temperature strength. | Automotive exhaust pipes, heat exchangers, containers and other products that are not heat treated after welding. |
| 410L(13Cr) | Iron cable steel | On the basis of 410 steel, the content of C is reduced, and its processability, welding deformation resistance and high temperature oxidation resistance are excellent. | Parts for mechanical structure, engine exhaust pipe, boiler combustion chamber, burner. |
| 430(16Cr) | Iron cable steel | As a representative steel of ferritic steel, it has low thermal expansion rate and excellent formability and oxidation resistance. | Heat resistant appliances, burners, household appliances, class 2 tableware, kitchen sink, external decorative materials, bolts, nuts, CD rods, screens |
| 430J1L(18-Cr0.5Cu-Nb) | Iron cable steel | In 430 steel, Cu, Nb and other elements are added; It has good corrosion resistance, formability, weldability and high temperature oxidation resistance. | Building exterior decoration materials, auto parts, cold and hot water supply equipment. |
| 436L(18Cr-1Mo-Ti，Nb，Zr) | Iron cable steel | It has good heat resistance and abrasion resistance. Because it contains Nb and Zr elements, it has excellent processability and weldability. | Washing machine, automobile exhaust pipe, electronic products, 3-layer bottom pot. |
| 410(13Cr) | Martensitic steel | As a representative of martensitic steel, although it has high strength, it is not suitable for harsh corrosive environment; It has good workability and is hardened (magnetic) according to the heat treatment surface。 | Blade, mechanical parts, oil refining unit, bolt, nut, pump rod, class 1 tableware (knife and fork). |
| 420J1(13Cr-0.2C) | Martensitic steel | After quenching, it has high hardness and good corrosion resistance (magnetic). | Tableware (knife), turbine blade |
| 420J2(13Cr-0.3C) | Martensitic steel | After quenching, the hardness is higher than that of 420J1 steel (magnetic)。 | Blade, nozzle, valve, ruler, tableware (scissors, blade). |
