STS INFORMATION STAINLESS STEEL CLUB

Character & Usage

301

Characteristics
Has lower Cr, Ni content than 304 steel. Its tensile strength increases with cold drawing. It is non-magnetic and acquires magnetism after cold drawing.
Usage
Trains, aircraft, belt conveyors, vehicles, bolts, spring

301L

Characteristics
301steel is created by lowering the C content in 301 steel and by improving grain boundary corrosion resistance of the welding part. Strength deterioration due to reduced C content is reinforced by adding N.
Usage
Train frames, building exterior material

303

Characteristics
Good free-cutting property by adding S and excellent anti-quenchability.
Usage
Shafts for electric appliances, OA products, bolts and nuts

304

Characteristics
Most widely used steel type. Good corrosion resistance, thermal resistance, low-temperature strength and mechanical properties. Good drawability such as Deep Drawing, Bending and does not harden during heat treatment. (non-magnetic, usable temperature:-196~800℃)
Usage
Hollow and flat ware, sinks, interior piping, hot-water boilers, bath tubs, boilers, automobile parts (wiper, muffler, molding), medical instruments, building materials, facilities in chemical, food and dairy industries, vessel parts

304L

Characteristics
304L steel is low carbon 304 steel. In normal conditions, it has similar corrosion resistance. Excellent resistance to inter-granular corrosion after welding and stress relieving. Has corrosion resistant properties without heat treatment and is generally used at temperatures under 400℃
(non-magnetic, usable temperature:-196~800℃)
Usage
Machinery and tools used in the chemical, coal, and petroleum industry that require high inter-granular corrosion resistance, building materials, heat resistant part and parts that are difficult to implement heat treatment on

304Cu

Characteristics
By adding Cu, it has good pliability and good drawability. Useful for deep drawing products which requires a hygienic environment
Usage
Thermos bottles, kitchen sinks, pots, group food serving facilities, door knobs, products requiring spinning or drawing

304N1

Characteristics
304steel is made by lowering the S and Mn content in 304 steel and adding N to prevent ductility reduction. Strength is improved and thickness reduced.
Usage
Structural use, street lights, water tanks, water pipes

304LN

Characteristics
Strength and inter-granular corrosion resistance are improved by adding N.
Usage
Structural use, heat exchange systems, chemical vessels

304H,M,S

Characteristics
Steel types formed for wire rods by adjusting the C content in 304 steel. Strength increases with cold drawing.
Usage
H: wire ropes, hooks, CD Bars M: mesh, bolts, nuts, CD Bars S: mesh

304HA,HC

Characteristics
Steel types formed for wire rods by adjusting the C content in 304. Good cold headability and free-cutting property.
Usage
HA: shaft HC: medium and large size bolts and nuts HD: CD Bars HN: nails

305

Characteristics
High Ni content. Non-magnetic and suitable for deep drawing use due to good cold formality.
Usage
Dinnerware, electrical parts

316

Characteristics
Excellent corrosion resistance, pitting corrosion resistance and high temperature strength by adding Mo. Useful in severe/harsh conditions. Excellent drawing hardening (non-magnetic).
Usage
Sea water equipment, equipment for chemicals, paper, dye, acetic acid, fertilizer, photo and food industry and construction in coastal areas, ropes, CD Bars, nuts and bolts

316L

Characteristics
Low carbon steel type. Has the normal properties of 316 plus excellent inter-granular corrosion resistance.
Usage
Made with 316 steel, excellent inter-granular corrosion resistance, mesh

316S

Characteristics
Has 316 steel properties and suitable for ultra fine wire.
Usage
Mesh

321

Characteristics
By adding Ti, prevents intra-granular corrosion, suitable under 430℃~900℃
Usage
Airplane exhaust pipes, boilers, heat exchangers.