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Stainless Property
Please refer to the explanation of product's characteristics when ordering.
Stainless Property
| SUS304 | SUS304L |
|---|---|
|
Most widely used form. Excellent resistance to corrosion and heat. Excellent property of transformation and welding. Not been hardened by heat processing. No magnetism. |
Low carbon Ni-Cr steel. Similar level of resistance to corrosion. Extraordinarily excellent resistance to intergranular corrosion after welding or heat treatment to remove stress. |
Property of heat treatment
| Steel Type | KS(JIS) / POSCO | SUS304 | SUS304L |
|---|---|---|---|
| Chemical Components(%) | C | ≤ 0.08 | ≤ 0.030 |
| Cr | 18.0 ~ 20.0 | 18.0 ~ 20.0 | |
| Ni | 8.00 ~ 10.50 | 9.00 ~ 13.00 | |
| Mo | 0 | 0 | |
| Others | 0 | 0 | |
| Mechanical property | Proof Stress(0.2%) (N/㎟) |
205 ≤ | 175 ≤ |
| Yield Strength(Y/S) (N/㎟) |
205 ≤ | 175 ≤ | |
| Tensile Strength (N/㎟) |
502 ≤ | 480 ≤ | |
| Elongation(%) | 40 ≤ | 40 ≤ | |
| Physical properties | Hardness(Hv) | ≤ 200 | ≤ 200 |
| Specific Heat J/g℃ |
0.50 | 0.50 | |
| Specific Gravity Kg/mm.㎡ |
7.93 | 7.93 | |
| Thermal Expansion Coefficient x10-6cm/cm/℃ (20-100℃) |
17.3 | 17.3 | |
| Thermal Conductivity x10-6cm/cm/℃ (20-100℃) |
16.3 | 16.3 |
Usage
| SUS304 | SUS304L |
|---|---|
| home products, internal piping, automobile parts, medical equipment, building materials, chemistry, food industry, textile industry, ship parts, parts for heat resistance | Equipment's requiring high resistance of grain boundary to corrosion used in chemical coal and petroleum industry, Parts difficult to perform heat treatment, Water heater, heat exchanger, chemical textile industry, facilities for nuclear power development |