SUS304: It has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good hot workability such as stamping and bending, no heat treatment hardening phenomenon, and no magnetism. Widely used in household items (1, 2 tableware), cabinets, indoor pipelines, water heaters, boilers, bathtubs, auto parts, medical equipment, building materials, chemicals, food industry, agriculture, ship parts.
SUS304L: Austenitic basic steel grade, most widely used; excellent corrosion resistance and heat resistance; excellent low temperature strength and mechanical properties; single-phase austenite structure, no heat treatment hardening phenomenon (non-magnetic, operating temperature -196-- 800°C).
SUS304Cu: Austenitic stainless steel with 17Cr-7Ni-2Cu as the basic composition; excellent formability, especially good wire drawing and aging crack resistance; corrosion resistance is the same as 304.
SUS316: Excellent corrosion resistance and high temperature strength, can be used under harsh conditions, good work hardening, non-magnetic. Suitable for seawater equipment, chemicals, dyes, papermaking, oxalic acid, fertilizer production equipment, photography, food industry, coastal facilities.
SUS316L: Mo (2-3%) is added to the steel, so it has excellent corrosion resistance and high temperature strength; SUS316L has a lower carbon content than SUS316, so it has better resistance to intergranular corrosion than SUS316; high temperature creep strength. Can be used in harsh conditions, good work hardening, non-magnetic. Suitable for seawater equipment, chemicals, dyes, papermaking, oxalic acid, fertilizer production equipment, photography, food industry, coastal facilities.
SUS321: Ti is added to 304 steel, so it has excellent resistance to intergranular corrosion; excellent high temperature strength and high temperature oxidation resistance; high cost and poor workability than SUS304. Heat-resistant materials, automobiles, aircraft exhaust pipes, boiler covers, pipes, chemical devices, heat exchangers.
SUH409H: Good processing performance, good welding performance, good high temperature oxidation resistance, can withstand the temperature range from room temperature to 575 ℃, widely used in automobile exhaust system.
SUS409L: Controls the C and N content in the steel, so it has excellent weldability, formability and corrosion resistance; contains 11% Cr, is a ferritic stainless steel with a BCC structure at high temperature and normal temperature; because it is filled with Ti, it is below 750 ℃ Has air oxidation and corrosion resistance.
SUS410: Martensite represents a steel grade, with high strength and high hardness (magnetic); poor corrosion resistance, not suitable for use in severely corrosive environments; low C content, good workability, and surface hardening through heat treatment.
SUS420J2: Martensite represents a steel grade, with high strength and high hardness (magnetic); poor corrosion resistance, poor formability, and good wear resistance; heat treatment can be performed to improve mechanical properties. Widely used for processing knives, nozzles, valves, plate rulers, tableware.
SUS430: Low thermal expansion rate, good formability and oxidation resistance, suitable for heat-resistant appliances, burners, home appliances, Class 2 tableware, kitchen sinks. Low price, good workability is an ideal substitute for SUS304; good corrosion resistance, typical non-heat treatment hardenable ferritic stainless steel.
