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Audited Supplier | Products | UNS N08904 stainless steel plate |
| Thickness | 3.0 - 30.0mm |
| Width | within 2000mm |
| Length | within 8000mm |
| Standard | ASTM A240 |
| Standard size | 1500 x 6000mm |
| Surface | NO.1 |
| Edge | Slit Edge |
| Manufacturer | BAOSTEEL |
Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel has added copper to improve its resistance to strong reducing acids, such as sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L stainless steel is non-magnetic, and offers excellent formability, toughness and weldability. Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205.
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.
Feather of grade 904L
Chemical Composition of grade 904L
| C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| 0.02 | 2.00 | 1.0 | 0.045 | 0.035 | 19.0-230 | 4.0-5.0 | 23.0-280 | 1.0 - 2.0 |
Typical application areas for N08904:
Size of 904L stainless steel plate in stock
| Number | Thickness | Size | |
| 1 | 2.0 | 1219*2438mm | |
| 2 | 2.5 | 1219*2438mm | |
| 3 | 3.0 | 1219*2438mm | 1500*6000mm |
| 4 | 4.0 | 1500*6000mm | |
| 5 | 5.0 | 1500*6000mm | |
| 6 | 6.0 | 1500*6000mm | |
| 7 | 8.0 | 1500*6000mm | 1800/2000mm width |
| 8 | 10.0 | 1500*6000mm | 1800/2000mm width |
| 9 | 12.0 | 1500*6000mm | 1800/2000mm width |
| 10 | 14.0 | 1500*6000mm | 1800/2000mm width |
| 11 | 16.0 | 1500*6000mm | 1800/2000mm width |
| 12 | 18.0 | 1500*6000mm | |
| 13 | 20.0 | 1500*6000mm | |
| 14 | 22.0 | 1500*6000mm | |
| 15 | 24.0 | 1500*6000mm | |
| 16 | 26.0 | 1500*6000mm | |
| 17 | 28.0 | 1500*6000mm | |
| 18 | 30.0 | 1500*6000mm | |
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