18/8 stainless steel refers to stainless steel containing 18% chromium and 8% nickel. This stainless steel is also called 304 stainless steel. However, it also has three other identifications and names: 06Cr19Ni10, 304, and SUS304. 06Cr19Ni10 generally indicates national standard production, 304 generally indicates American ASTM standard production, and SUS304 indicates Japanese standard production.
SUS304 stainless steel characteristics:
Corrosion resistance: It has good chemical corrosion resistance, especially in oxidizing acids.
Mechanical properties: It has high tensile strength and yield strength, suitable for various processing and forming operations.
Processing performance: It is easy to cold work and heat treat, suitable for manufacturing various products, such as plates, tubes, wires, strips, etc.
Temperature Range |
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Steel Grade |
SUS304 |
SS 304 |
C ≤ |
0.08 |
0.07 |
Si ≤ |
1.00 |
0.75 |
Mn ≤ |
2.00 |
2.00 |
P ≤ |
0.045 |
0.045 |
S ≤ |
0.030 |
0.03 |
Cr |
18.00-20.00 |
17.5-19.5 |
Ni |
8.00-10.50 |
8.0-10.5 |
Density(g/cm3) |
Melting point (℃) |
Specific heat (J/kg·℃) |
Electrical resistivity (μΩ·m) (20℃) |
Thermal expansion (10-6/K) |
Thermal conductivity (W/m·K) |
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SUS304 Material Physical Properties ≤ |
7.93 |
1,400-1,450 |
460-502 |
0.73 |
16.3 (20-100℃) 17.8 (20-300℃) 18.4 (20-500℃) |
16.8 (100℃) |
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SS 304 Material Physical Properties |
7.93 g/cm3 |
1398-1454 ℃ |
500 J/(Kg·K) at 0-100℃ |
0.73 μΩ·m (20℃) |
17.2 (0-100℃) 17.8 (0-300℃ 18.4 (0-500℃) |
16.3 (100 ℃) |
304 stainless steel application areas
Due to its excellent comprehensive performance, it is widely used in the following fields:
Kitchenware and tableware: Due to its corrosion resistance and aesthetics, it is often used to manufacture kitchenware and tableware.
Architecture and decoration: Used to make railings, furniture, etc. due to its beauty and corrosion resistance.
Medical equipment: Often used in the manufacture of medical equipment due to its non-toxicity and corrosion resistance.