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904L (N08904,,14539) super austenitic stainless steel contains 14.0-18.0% chromium, 24.0-26.0% nickel, 4.5% molybdenum.904L super austenitic stainless steel is a low carbon, high nickel, molybdenum austenitic stainless steel, which is the exclusive material of H·S company from France.It has good activation – passivation conversion ability, excellent corrosion resistance, in non-oxidizing acid such as sulfuric acid, acetic acid, formic acid, phosphoric acid has good corrosion resistance, in neutral medium containing chloride ion has good pitting resistance, and has good crack corrosion resistance and stress corrosion resistance.
1. Strong corrosion resistance: 904L stainless steel has excellent corrosion resistance, especially in strong acid, strong alkali and chloride media. Compared with traditional AISI 316L stainless steel, 904L stainless steel has higher nickel, chromium and molybdenum content, making it more stable and durable in corrosive environments.2. Excellent antioxidant properties: 904L stainless steel has extremely high antioxidant properties and can effectively resist the erosion of oxidants. This allows 904L stainless steel to maintain its original performance and appearance in high-temperature environments, making it suitable for high-temperature processes and equipment.3. High strength and toughness: 904L stainless steel has high yield strength and tensile strength, and also has good cold working properties. This allows 904L stainless steel to be used to manufacture parts and equipment of various complex shapes to meet the needs of different engineering projects.4. Good welding performance: 904L stainless steel has excellent welding performance and can be connected through a variety of conventional welding methods, and the joints after welding have good corrosion resistance. This facilitates engineers' operations in practical applications and ensures equipment reliability.904L Chemical Composition | ||||||||||
| Elements | Carbon | Manganese | Phosphorus | Sulphur | Silicon | Chromium | Nickel | Molybdenum | Nitrogen | Copper |
|---|---|---|---|---|---|---|---|---|---|---|
| Compositions by % | 0.02 max | 2.00 | 0.045 | 0.035 | 1.00 | 19.0 - 23.0 | 23.0 - 28.0 | 4.0 - 5.0 | 0.1 | 1.0 - 2.0 |
| 904L Mechanical Properties | ||
| Tensile Strength, min | Yield Strength, min | Elongation, min |
| 490 MPa | 220 MPa | 35% |
| Thickness | 4mm-100mm | ||||||
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc | ||||||
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc | ||||||
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc | ||||||
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) | ||||||
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. | ||||||
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