304 stainless steel pipe is a versatile stainless steel material with stronger anti-rust performance than 200 series stainless steel materials. It is also relatively good in terms of high temperature resistance and can reach temperatures as high as 800 degrees. It has excellent stainless corrosion resistance and good intergranular corrosion resistance. For oxidizing acids, it was found in experiments that in nitric acid with a concentration of ≤65% and below the boiling temperature, 304 stainless steel pipes have strong corrosion resistance. sex. It also has good corrosion resistance to alkali solutions and most organic and inorganic acids.
Stainless Steel 304 Pipes are used in various fields, especially in food processing, as they are not prone to the acid corrosion found in common foods. This steel is suitable for products such as sinks, dishwashers, stainless steel footover bridges, commercial food processing equipment, and refrigerators.
| Material Properties | 304 Stainless Steel |
|---|---|
| Chemical Composition | Chromium (Cr): 18-20% |
| Nickel (Ni): 8-10.5% | |
| Carbon (C): ≤ 0.08% | |
| Silicon (Si): ≤ 1.00% | |
| Manganese (Mn): ≤ 2.00% | |
| Phosphorus (P): ≤ 0.045% | |
| Sulfur (S): ≤ 0.030% | |
| Others: Iron (Fe) balance | |
| Physical Properties | Density: 7.93 g/cm³ |
| Melting Point: 1400-1450 °C | |
| Thermal Conductivity: 15.1 W/(m·K) | |
| Electrical Resistivity: 0.73 Ω·m | |
| Coefficient of Thermal Expansion: 17.2 x 10⁻⁶ /°C | |
| Mechanical Properties | Tensile Strength: ≥ 520 MPa |
| Yield Strength: ≥ 205 MPa | |
| Elongation: ≥ 40% | |
| Impact Strength: Not Specified | |
| Hardness: ≤ 200 HV | |
| Corrosion Resistance | Resistant to corrosion in most oxidizing acids |
| Good resistance to corrosion in alkaline solutions | |
| Good resistance to corrosion in organic and inorganic acids, except for concentrated nitric acid | |
| Applications | Food processing and storage equipment |
| Chemical processing equipment | |
| Petroleum and natural gas pipelines | |
| Automotive exhaust systems, brake lines | |
| Medical equipment, surgical instruments | |
| Environmental equipment, exhaust gas purification systems |
