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300 Series Stainless Steel Introduction
Time：2021-07-29
Source：Wuxi Hongwang
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1. 301 stainless steel
Characteristics: Compared with 304 steel, the content of Cr and Ni is lower, and the tensile strength is improved after cold rolling. It is originally non-magnetic, but it will become magnetic after cold rolling.
Uses: trains, airplanes, conveyor belts, vehicles, bolts, nuts, springs, clockwork.
2. 301L stainless steel
Characteristics: Based on 301 steel, the carbon content is reduced to improve the grain boundary corrosion resistance of the welded part. Nitrogen is added to solve the strength reduction caused by low carbon content.
Uses: Frame and exterior decoration materials for railway vehicles.
3.303 stainless steel
Characteristics: Due to the addition of sulfur, it has good machinability and strong printing resistance.
Uses: household appliances and office equipment.
Characteristics: Based on 301 steel, the carbon content is reduced to improve the grain boundary corrosion resistance of the welded part. Nitrogen is added to solve the strength reduction caused by low carbon content.
Uses: Frame and exterior decoration materials for railway vehicles.
3.303 stainless steel
Characteristics: Due to the addition of sulfur, it has good machinability and strong printing resistance.
Uses: household appliances and office equipment.
4. 304 stainless steel
Characteristics: It is the most common steel grade, with good corrosion resistance, heat resistance, low temperature strength and mechanical properties. Deep drawing, bending and other room temperature processing performance is better, and will not harden after heat treatment.
Uses: household products (category 1, 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, ship parts.
Characteristics: It is the most common steel grade, with good corrosion resistance, heat resistance, low temperature strength and mechanical properties. Deep drawing, bending and other room temperature processing performance is better, and will not harden after heat treatment.
Uses: household products (category 1, 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, ship parts.
5. 304L stainless steel
Characteristics: It is low-carbon 304 steel, and its corrosion resistance is similar to 304 steel under normal conditions. But after welding or stress removal, the corrosion resistance is particularly strong. Without heat treatment, it still has corrosion resistance and is mostly used below 400°C.
Uses: Chemical, coal, petroleum industry equipment, construction materials, heat-resistant parts and parts that are not easily heat-treated that require high resistance to grain boundary corrosion.
Characteristics: It is low-carbon 304 steel, and its corrosion resistance is similar to 304 steel under normal conditions. But after welding or stress removal, the corrosion resistance is particularly strong. Without heat treatment, it still has corrosion resistance and is mostly used below 400°C.
Uses: Chemical, coal, petroleum industry equipment, construction materials, heat-resistant parts and parts that are not easily heat-treated that require high resistance to grain boundary corrosion.
6.304Cu stainless steel
Characteristics: Strong environmental adaptability, suitable for environments including no rust at normal temperature and pressure, corrosion resistance, heat resistance, high temperature and low temperature resistance, high hardness and strength, smooth and beautiful decoration.
Uses: petrochemicals, fertilizers, electric power, boiler heat exchangers, ships, environmental protection, mechanical processing, papermaking, food and beverages.
7.304N1 stainless steel
Characteristics: Reduce the content of S and Mn on the basis of 304 steel to prevent low ductility and increase strength. The thickness of the material is also reduced.
Uses: structural use, street lights, reservoirs, water pipes.
Characteristics: Strong environmental adaptability, suitable for environments including no rust at normal temperature and pressure, corrosion resistance, heat resistance, high temperature and low temperature resistance, high hardness and strength, smooth and beautiful decoration.
Uses: petrochemicals, fertilizers, electric power, boiler heat exchangers, ships, environmental protection, mechanical processing, papermaking, food and beverages.
7.304N1 stainless steel
Characteristics: Reduce the content of S and Mn on the basis of 304 steel to prevent low ductility and increase strength. The thickness of the material is also reduced.
Uses: structural use, street lights, reservoirs, water pipes.
8. 304LN stainless steel
Characteristics: Compared with 304L steel, N is added to improve the high strength and grain boundary corrosion resistance of structural parts.
Uses: structural use, chemical substance transport ship.
Characteristics: Compared with 304L steel, N is added to improve the high strength and grain boundary corrosion resistance of structural parts.
Uses: structural use, chemical substance transport ship.
9.304H stainless steel
Characteristics: The internal branch of 304 stainless steel, the carbon mass fraction is 0.04%~0.10%, and the high temperature performance is better than that of 304 stainless steel.
Uses: large boiler superheater, reheater, steam pipe, petrochemical heat exchanger.
10.305 stainless steel
Characteristics: Compared with 304, high nickel. Excellent flexibility and functionality of the welded part. Non-magnetic and cold-rolled formability for electronic parts is strong, suitable for deep processing.
Uses: Western tableware, electronic parts.
11. 310S stainless steel
Characteristics: Good resistance to intergranular corrosion, excellent resistance to chloride stress corrosion, and good resistance to high temperature oxidation.
Uses: used to make furnace tubes, boiler superheaters, heat exchanger pipe fittings.
Characteristics: Compared with 304, high nickel. Excellent flexibility and functionality of the welded part. Non-magnetic and cold-rolled formability for electronic parts is strong, suitable for deep processing.
Uses: Western tableware, electronic parts.
11. 310S stainless steel
Characteristics: Good resistance to intergranular corrosion, excellent resistance to chloride stress corrosion, and good resistance to high temperature oxidation.
Uses: used to make furnace tubes, boiler superheaters, heat exchanger pipe fittings.
12.316 stainless steel
Characteristics: Adding Mo, corrosion resistance, air corrosion resistance, high temperature strength is particularly good, suitable for use in harsh conditions. Good work hardening performance.
Uses: sea water equipment, chemistry, papermaking, fuel, oxalic acid, fertilizer production equipment, photography, food industry, coastal area facilities.
Characteristics: Adding Mo, corrosion resistance, air corrosion resistance, high temperature strength is particularly good, suitable for use in harsh conditions. Good work hardening performance.
Uses: sea water equipment, chemistry, papermaking, fuel, oxalic acid, fertilizer production equipment, photography, food industry, coastal area facilities.
13. 316L stainless steel
Characteristics: It has good resistance to crystal and corrosion, and has good corrosion resistance to organic acids, alkalis and salts.
Uses: equipment used in sea water, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts, heat exchangers.
Characteristics: It has good resistance to crystal and corrosion, and has good corrosion resistance to organic acids, alkalis and salts.
Uses: equipment used in sea water, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts, heat exchangers.
14. 317L stainless steel
Characteristics: Excellent corrosion resistance, better resistance to pitting corrosion in chloride-containing solutions.
Uses: To manufacture main resistant pipes for industrial equipment such as synthetic fiber, petrochemical, textile, papermaking and atomic energy post-processing.
15. 321 stainless steel
Characteristics: On the basis of 304 steel, Ti is added to prevent grain boundary corrosion. It is suitable for use at 430℃ to 900℃.
Uses: aircraft exhaust pipes, boilers, heat exchangers.
Characteristics: Excellent corrosion resistance, better resistance to pitting corrosion in chloride-containing solutions.
Uses: To manufacture main resistant pipes for industrial equipment such as synthetic fiber, petrochemical, textile, papermaking and atomic energy post-processing.
15. 321 stainless steel
Characteristics: On the basis of 304 steel, Ti is added to prevent grain boundary corrosion. It is suitable for use at 430℃ to 900℃.
Uses: aircraft exhaust pipes, boilers, heat exchangers.
16.347H stainless steel
Characteristics: It has good corrosion resistance, welding performance and thermal strength.
Uses: used in large boiler superheaters, reheaters, steam pipes, and petrochemical heat exchanger pipe fittings.
Characteristics: It has good corrosion resistance, welding performance and thermal strength.
Uses: used in large boiler superheaters, reheaters, steam pipes, and petrochemical heat exchanger pipe fittings.
Hongwang Group is a professional manufacturer and supplier of cold rolled stainless steel. Welcome to contact us.
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