This data sheet applies to stainless steel 904L / 1.4539 hot and cold rolled sheet and strip, semi-finished products, bars, rolled wire and profiles as well as seamless and welded tubes for pressure purposes.
Application
Chemical plant, oil refinery, petrochemical plants, bleaching tanks for the paper industry, combustion gas desulfurisation plants, application in sea water, sulphuric and phosphoric acid. Due to the low C-content, the resistance to intergranular corrosion is also guaranteed in the welded condition.
Chemical Compositions
| Element | % Present (in product form) |
|---|---|
| Carbon (C) | 0.02 |
| Silicon (Si) | 0.70 |
| Manganese (Mn) | 2.00 |
| Phosphorous (P) | 0.03 |
| Sulfur (S) | 0.01 |
| Chromium (Cr) | 19.00 - 21.00 |
| Nickel (Ni) | 24.00 - 26.00 |
| Nitrogen (N) | 0.15 |
| Molybdenum (Mo) | 4.00 - 5.00 |
| Copper (Cu) | 1.20 - 2.00 |
| Iron (Fe) | Balance |
| Density at 20°C kg/m3 | 8.0 | |
|---|---|---|
| Thermal Conductivity W/m K at | 20°C | 12 |
| Modulus of Elasticity kN/mm2 at | 20°C | 195 |
| 200°C | 182 | |
| 400°C | 166 | |
| 500°C | 158 | |
| Specific Thermal Capacity at 20°C J/kg K | 450 | |
| Electrical Resistivity at 20°C Ω mm2/m | 1.0 | |
Remark
In quenched condition the material can be slightly magnetizable. With increasing cold forming the magnetizability increases.
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