Premium AISI 904L Super Austenitic Stainless Steel
Mar 23, 2026
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Manufacturing Process Excellence
Our integrated manufacturing process begins with vacuum induction melting using premium raw materials, followed by electroslag remelting for enhanced cleanliness. Hot rolling is performed within precise temperature ranges to optimize grain structure, while cold working operations achieve desired mechanical properties and dimensional accuracy. Advanced surface treatment processes ensure superior finish quality and corrosion resistance.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.020 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.035 |
| Chromium (Cr) | 19.0 - 23.0 |
| Nickel (Ni) | 23.0 - 28.0 |
| Molybdenum (Mo) | 4.0 - 5.0 |
| Copper (Cu) | 1.0 - 2.0 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | ≥ 490 MPa |
| Yield Strength (Rp0.2) | ≥ 220 MPa |
| Elongation (A5) | ≥ 35% |
| Hardness (HB) | ≤ 250 |
| Hardness (HV) | ≤ 270 |
| Impact Energy (KV) at 20°C | ≥ 100 J |
| Young's Modulus (E) | 200 GPa |
| Shear Modulus (G) | 81 GPa |
| Poisson's Ratio | 0.27 - 0.30 |
| Fatigue Limit (10&sup7; cycles) | 245 MPa |
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