SS 904L Stainless Steel Wire
Precision Alloys is a trusted manufacturer and global supplier of SS 904L stainless steel wire, offering premium-grade, highly corrosion-resistant wire solutions for chemical processing, marine engineering, desalination, and pharmaceutical industries. Our SS 904L wires comply with ASTM A580, ASME SA580, and EN 10088 standards, and are available in a wide range of diameters, tempers, and surface finishes.
What is SS 904L Stainless Steel Wire?
SS 904L wire is a super austenitic stainless steel wire containing high levels of chromium (19–23%), nickel (23–28%), and molybdenum (4–5%). It delivers exceptional resistance to strong acids, chloride stress corrosion, and pitting, making it ideal for harsh chemical and saltwater environments. SS 904L is also non-magnetic, even after cold working, and suitable for high-purity applications.
Available in soft annealed, half-hard, and spring-hard conditions, SS 904L wire is supplied in coils, spools, or custom cut lengths.
SS 904L Stainless Steel Wire Specifications
| Property | Specification |
|---|---|
| Material Grade | SS 904L |
| UNS Number | N08904 |
| EN / WNR | 1.4539 |
| Diameter Range | 0.15 mm – 8 mm |
| Tempers | Soft Annealed, Half-Hard, Spring-Hard |
| Forms | Coils, Spools, Cut-to-Length |
| Surface Finishes | Bright, Matte, Pickled, Electropolished |
| Standards | ASTM A580, ASME SA580, EN |
Chemical Composition – SS 904L Stainless Steel Wire
| Element | % Composition |
|---|---|
| Carbon (C) | 0.02 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 19.0 – 23.0 |
| Nickel (Ni) | 23.0 – 28.0 |
| Molybdenum (Mo) | 4.0 – 5.0 |
| Copper (Cu) | 1.0 – 2.0 |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.035 max |
Mechanical Properties – SS 904L Stainless Steel Wire
| Property | Value |
|---|---|
| Tensile Strength | 490 – 750 MPa |
| Yield Strength | 220 MPa min |
| Elongation | 35% min |
| Hardness | Up to 95 HRB |
| Service Temperature | Up to 450°C continuous, intermittent higher |
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