SS904L AISI 904L Stainless Steel (UNS N08904) Material Properties, Composition, Hardness
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Family: Stainless Steel
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Tensile Strength | 490.0 MPa |
| Yield Strength | 220.0 MPa |
| Elongation | 35.0% |
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Cr | 19.0-23.0 |
| Cu | 1.0-2.0 |
| Mo | 4.0-5.0 |
| Ni | 23.0-28.0 |
| Type | 904L (UNS N08904) |
| C, ≤ | 0.02 |
| N, ≤ | 0.10 |
| P, ≤ | 0.045 |
| S, ≤ | 0.030 |
| Mn, ≤ | 2.00 |
| Si, ≤ | 1.00 |
| Notes (Product) | Bars and Shapes |
| Grade (Steel Number) | X1NiCrMoCu25-20-5 (1.4539) |
| ISO Name (ISO Number) | X1NiCrMoCu25-20-5 (4539-089-04-I) |
Where to Buy SS904L AISI 904L Stainless Steel (UNS N08904) Material Properties, Composition, Hardness
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Description
AISI 904L stainless steel (UNS N08904) is a high alloy austenitic stainless steel. Compared with 316L, SS904L has lower carbon (C) content, higher chromium (Cr) content, and approximatively twice the nickel (Ni) and molybdenum (Mo) content of 316L, which makes it have higher high temperature oxidation resistance, pitting resistance, and resistance to reducing acid (eg, sulfuric acid). Nitrogen (N) can reduce the rate of chromium carbide precipitation, thereby reducing the sensitivity of sensitization, it also improve the resistance to pitting and crevice corrosion caused by chlorides. Especially its addition of copper (Cu) makes it useful for all concentrations of sulfuric acid. The following data sheet summarizes the chemical composition, properties, heat treatment and equivalent grade of 904L stainless steel (SS904L). The following data sheet gives SS 904L stainless steel chemical composition.