904L UNS N08904 Super Duplex Pipe
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super alloy Products Application
904L UNS N08904 super duplex Pipe video
904L uses, application scope and application fields are:
* Petroleum and petrochemical equipment, such as reactors in petrochemical equipment, etc.
* Storage and transportation equipment for sulfuric acid, such as heat exchangers, etc.
* The main parts used in power plant flue gas desulfurization equipment are: the tower body of the absorption tower, the flue, the baffle plate, the internal parts, the spray system, etc.
* Scrubbers and fans in organic acid treatment systems.
*Seawater treatment equipment, seawater heat exchangers, paper industry equipment, sulfuric acid, nitric acid equipment, sulfuric acid, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment.
*Pharmaceutical factory: centrifuge, reactor, etc.
*Plant foods: soy sauce jars, cooking wine, salt shakers, equipment and dressings.
*904L is a suitable steel type for the highly corrosive medium of dilute sulfuric acid.
super alloy Material Specification
| Weight % | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu |
| Min. | 19,0 | 24,0 | 3,00 | 1,20 | ||||||
| Max. | 0,020 | 1,20 | 0,030 | 0,010 | 0,70 | 21,0 | 26,0 | 4,50 | 0,50 | 2,00 |
904L UNS N08904 super duplex Pipe
904L (N08904, 14539) super austenitic stainless steel contains 14.0-18.0% chromium, 24.0-26.0% nickel, and 4.5% molybdenum. 904L super austenitic stainless steel is a low-carbon, high-nickel, molybdenum austenitic stainless acid-resistant steel. It is a proprietary material imported from French H·S Company. It has good activation-passivation transition ability, excellent corrosion resistance, good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, and phosphoric acid, and good corrosion resistance in neutral chlorine-containing media. Excellent resistance to pitting corrosion, as well as good resistance to crevice corrosion and stress corrosion. It is suitable for sulfuric acid of various concentrations below 70°C. It can withstand acetic acid of any concentration and temperature under normal pressure, and has good corrosion resistance in mixed acids of formic acid and acetic acid.
Super austenitic stainless steel 904L (00Cr20Ni25Mo4.5Cu; UNS: N08904; EN: 1.4539) is a high-alloy austenitic stainless steel with low carbon content. It has good corrosion resistance in dilute sulfuric acid and is designed for corrosive conditions. Designed for harsh environments. It has a high chromium content and sufficient nickel content. The addition of copper makes it highly acid-resistant, especially highly resistant to chloride gap corrosion and stress corrosion cracking. It is not prone to corrosion spots and cracks, and is resistant to spots. Its corrosion resistance is slightly better than other steel types, it has good processability and weldability, and can be used in pressure vessels.
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A: We have many professionals, technicians, more competitive prices and the best after-sales service than other stainless steel companies.
Q: About the product price of 904L UNS N08904 super duplex Pipe?
A: Due to cyclical changes in raw material prices, prices vary in different periods.
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