Because of its excellent corrosion resistance, as well as elegant appearance and other characteristics, stainless steel has been widely used in heavy industry, light industry, household goods industry and building decoration industry.

1) Austenitic stainless steel

1. 301: compared with 304 steel, Cr and N content is lower, after cold rolling processing to improve the tensile strength. It is not magnetic, but it will be magnetic after cold rolling. Applications: trains, aircraft, conveyor belts, vehicles, bolts, nuts, springs, clockwork, etc.

2. 301L: On the basis of 301 steel, reduce the carbon content to improve the resistance to particle boundary corrosion of the welding part of the steel. N is added to address the reduction in strength resulting from low carbon content. Uses: railway vehicle frame and exterior decoration materials, etc.

3. 303: Due to the addition of S, easy cutting is good, strong printing resistance. Uses: Home appliances and office equipment, shaft bolts, etc.

4. 304: is "common steel, corrosion resistance, heat resistance, low temperature strength, good mechanical properties." Deep and medium pressure, bending and other normal temperature processing performance is better, after heat treatment will not harden. (Non-magnetic, use temperature: -196 to 800°C) Use · Household goods (1 and 2 types of tableware, cabinets, indoor pipelines, water heaters, boilers, baths), auto parts (windshield wipers, *, mold products), medical equipment, building materials, chemicals, food industry, agriculture, ship parts, etc.

5. 304L: is a low-carbon 304 steel, the general state of corrosion resistance similar to 304 steel. However, after welding or stress removal, corrosion resistance is particularly strong. Without heat treatment, it still has corrosion resistance and is mostly used below 400°C. (non-carbon, use temperature: 196 to 800%C) Uses: chemical, coal, petroleum industry equipment, building materials, heat-resistant parts and parts that are not easy to heat treatment, etc. 6.304 Copper: is the addition of copper to improve the "quality and plasticity of steel, conducive to the need for health concepts of the environment and deep processing products. Uses: Warm bottles, kitchen sinks, group meal facilities, products requiring Door Knob, Spoinning processing, etc.

7. 304N1: On the basis of 304 steel to reduce the S and Mn content to prevent low ductility and improve strength, the material thickness has also been reduced. Uses: structure, street lamp, pool, water pipe, etc.

8. 304LN: compared with 304L steel, N is added to improve the high strength and particle boundary corrosion resistance of structural parts. Uses: structural, chemical transport ship, etc.

9. 304H,M.s: On the basis of 304 steel, adjust the carbon content, the deformation of this wire. The strength was improved during cold rolling. Uses: H:Wire Rope, fishing hook,CD, BarM:Mesh,Bolt,Nut,CD Bar, S:Mesh, etc.

10. 304HA.HC: On the basis of 304 steel, adjust the carbon content, the deformation of the wire, cold stamping and cutting performance is better. Uses: HA:Shaft, HC: medium and large Bolt,Nut, HD:CD Bar, HN: iron nail, etc.

11. 305: high Ni content, electronic parts with non-magnetic and cold rolling formability, suitable for deep processing. Uses: Western tableware, electronic parts, etc.

12. 316: Add Mo, corrosion resistance, air corrosion resistance, high temperature strength is particularly good, suitable for use in harsh conditions. Good work-hardening performance. (non-magnetic) use; Seawater equipment, chemical, paper, fuel, oxalic acid, fertilizer production equipment, photography, food industry, coastal facilities and Rope, CD Bar, Bolt, Nut, etc.

13. 3165: with the characteristics of 316 steel, suitable for very thin lines. Use: Mesh, etc.

14. 321: On the basis of 304 steel, Ti is added to prevent particle boundary corrosion, suitable for use in 430° to 900°C state. Applications: aircraft exhaust pipe, boiler Cover, heat exchanger, etc.

Ferritic stainless steel 

1. 409L: adding Ti, good weldability and processability. Applications: automotive exhaust parts, heat switches, containers and other products without post-heat treatment after welding. 

2. 410L: on the basis of 410 steel to reduce the carbon content, processing, welding bending, high temperature oxidation resistance is good. (magnetic) Uses: mechanical structure, engine exhaust pipe, boiler combustion chamber, Burner, etc. 

3. 430: is a representative of the iron system of steel, low thermal expansion rate, formability and oxidation resistance. Uses: Heat resistant equipment, Burner, home appliance parts, 2 types of tableware, Sink plate, exterior decoration materials, Bolt, Nut, CD Bar, Mesh, etc. 

4. 430J1L: add Mo, Ti and Nb, corrosion resistance, formability, coal bonding and high temperature oxidation resistance is good. Uses: laundry sink, automobile exhaust pipe, electronic parts, triple bottom iron pot, etc. 

5. 436L: add Mo, Ti and Nb, corrosion resistance, formability, weldability and high temperature oxidation resistance is good. Uses: automobile exhaust parts, hot water machinery, etc.

3) Martensitic stainless steel

1. 410: the representative steel of the Markov system, although it has high strength, it is not suitable for harsh corrosive environment. Good workability, hardening after heat treatment. Use: Blade