904L Cold Rolled Stainless Steel Sheet 2B Finish Super Austenitic Acid Resistant N08904
904L cold rolled stainless steel sheet is a super austenitic grade with high nickel, chromium and molybdenum plus copper addition. It offers outstanding resistance to sulfuric acid, phosphoric acid and chloride stress corrosion cracking.
The 2B finish provides a smooth bright surface. With a PREN above 34, 904L is widely used in the most demanding chemical and petrochemical services where standard austenitic grades fail.
| Specification | Detail |
|---|---|
| Thickness | 0.5 - 6.0mm |
| Width | 1000mm / 1219mm / 1500mm |
| Length | 2000mm / 2438mm / 3000mm or coil |
| Finish | 2B (Bright Cold Rolled) |
| Standard | ASTM A240, ASTM A480 |
| PREN | ≥ 34 |
| Edge | Slit edge / Mill edge |
| Tolerance | Thickness ±0.03mm, Width ±1mm |
| Element | Weight % |
|---|---|
| Carbon (C) | ≤ 0.020 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 19.0 - 23.0 |
| Nickel (Ni) | 23.0 - 28.0 |
| Molybdenum (Mo) | 4.0 - 5.0 |
| Copper (Cu) | 1.0 - 2.0 |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 490 MPa |
| Yield Strength (0.2% offset) | ≥ 220 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 90 HRB / ≤ 235 HBW |