Grade 904L stainless steels have excellent resistance to warm seawater and chloride attack. The high resistance of grade 904L against stress corrosion cracking is due to the presence of high amounts of nickel in its composition. Moreover, the addition of copper to these grades develops resistance to sulphuric acid and other reducing agents in both aggressive and mild conditions.The corrosion resistance of grade 904L is intermediate between super austenitic grades, with 6% molybdenum content, and standard 316L austenitic grades. Grade 904L is less resistant to nitric acid than grades 304L and 310L, which are free of molybdenum. This steel grade needs to be solution treated following cold working, to achieve maximum stress corrosion cracking resistance under critical environments.
| Product Name | 904L Stainless Steel Sheet |
| Surface Finish | 2B, BA, NO.1, NO.4, 8K, HL, Embossing, Satin, Mirror, ect |
| Standard | JIS/SUS/GB/DIN/ASTM/AISI/EN |
| Technique | Cold Rolled; Hot Rolled |
| Thickness | 0.3-4mm cold rolled; 3-16mm hot rolled; 16-100mm hot rolled; Customized according to customer requirements |
| Width | 1000mm, 1219mm, 1240mm, 1500mm, 1800mm, 2000mm |
| Length | 2000mm, 2438mm, 2500mm, 3000mm, 6000mm or as required |
| Color | Golden, Black, Sapphire Blue, Brown, Rose Gold, Bronze, Silver, ect |
| Application | Interior/Exterior decoration; Architectur; Evevator; Kitchen; Ceiling; Cabinet; Advertising nameplate; Roof structure; |
| Lead Time | 7-15 working days after the receipt of 30% deposit |
| Payment Terms | 30% TT for deposit,70% TT /70% LC at sight balance before shipment |
| Price Terms | FOB, EXW, CIF, CFR |
| Packing | Wooden Pallet or according to customer's requirements |
Applications
904L stainless steel (SS904L) is used in petroleum, chemical, fertilizer, marine development towers, tanks, pipes and tubes and heat exchangers. Rolex and other watch manufacturers also use it to make watches.
Heat Resistance
Grade 904L stainless steels offer good oxidation resistance. However, the structural stability of this grade collapses at high temperatures, particularly above 400°C.
Heat Treatment Grade 904L stainless steels can be solution heat-treated at 1090 to 1175째C, following by rapid cooling. Thermal treatment is suitable for hardening these grades. Welding Welding of grade 904L stainless steels can be performed using all conventional methods. This grade does not require pre-heat and post-weld heat treatments. Grade 904L can be subjected to hot cracking in constrained weldment. Grade 904L electrodes and rods are used for welding grade 904L steels according to AS 1554.6. Fabrication Grade 904L stainless steels are high purity steels with low sulphur content. They can be machined using any standard methods. These grades can be readily bent to a small radius under cold conditions. Although subsequent annealing is not required in most cases, it should be carried out when the fabrication is performed under severe stress corrosion cracking conditions.
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