310S stainless steel pipe primarily contains chromium (Cr) and nickel (Ni) elements, with chromium content approximately 25% and nickel content about 20%. This high chromium and nickel content provides excellent oxidation resistance and corrosion resistance. Additionally, it contains small amounts of silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), and other elements.
| Element | 310 | 310S | 310H |
|---|---|---|---|
| Chromium | 24.0 min.-26.0 max | 24.0 min.-26.0 max | 24.0 min.-26.0 max |
| Nickel | 19.0 min.-22.0 max | 19.0 min.-22.0 max | 19.0 min.-22.0 max |
| Carbon | 0.25 | 0.08 | 0.40 min. - 0.10max |
| Manganese | 2.00 | 2.00 | 2.00 |
| Phosphorus | 0.045 | 0.045 | 0.045 |
| Sulfur | 0.030 | 0.030 | 0.030 |
| Silicon | 1.50 | 1.50 | 0.75 |
| Iron | Balance | Balance | Balance |
| Yield Strength 0.2% Offset | Ultimate Tensile Strength | Elongation in 2 in. | Hardness |
|---|---|---|---|
| 35,000 psi (min.) / 245 MPa | 80,000 psi (min.) / 550 MPa | 45% (min.) | 217 Brinell (max.) |
310S stainless steel pipe is a high-performance material characterized by high temperature resistance, oxidation resistance, corrosion resistance, excellent mechanical properties, and superior processing performance. Widely used in high-temperature furnaces, chemical industry, power industry, food processing industry, and other fields, it has made significant contributions to various industrial developments.