Equivalent grades include UNS N08904, EN 1.4539 and X1NiCrMoCu25-20-5.
904L stainless steel balls are high-alloy austenitic stainless steel balls designed for highly corrosive environments. With high nickel, molybdenum and copper content, they provide excellent resistance to acids, chlorides and pitting corrosion.
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Also known as super austenitic stainless steel balls, 904L balls are used in highly corrosive chemical and marine-related environments.
904L stainless steel balls are manufactured from high-alloy austenitic stainless steel with elevated nickel, molybdenum and copper content.
Compared with standard stainless steels such as 304 or 316, 904L offers significantly improved resistance to acids, chlorides and pitting corrosion, making it suitable for severe corrosion-sensitive industrial environments.
| Item | Specification |
| Material | 904L Stainless Steel |
| International Designations | UNS N08904 / EN 1.4539 / X1NiCrMoCu25-20-5 |
| Size Range | 0.5 mm – 50 mm |
| Grade | G100 – G1000 |
| Density | 8.0 g/cm³ |
| Standard | ISO 3290 |
| Heat Treatment | Non-hardened Austenitic Stainless Steel |
| Corrosion Resistance | Excellent resistance to acids, chlorides and pitting corrosion |
| Packing | Carton / Steel drum / Bulk bag / Custom |
| Condition | Clean and dry. Passivated or oiled condition available upon request |
| Delivery Time | Production based |
| Grade | C (%) | Si (%) | Mn (%) | Cr (%) | Ni (%) | Mo (%) | Cu (%) |
| 904L | ≤0.02 | ≤1.00 | ≤2.00 | 19.00–23.00 | 23.00–28.00 | 4.00–5.00 | 1.00–2.00 |
Note: Typical chemical composition ranges. Minor variations may exist among different international standards.
Chemical Processing Equipment
Marine & Offshore Equipment
Acid Handling Systems
Corrosion-Critical Industrial Components
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Contact: Nicky Yang
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