AISI 904L stainless steel or AISI 904L (WNR1.4539) ASTM A 249, N08904, X1NiCrMoCu25-20-5 is a high alloy austenitic stainless steel. Compared with 316L, SS904L has a lower carbon (C) content, a higher chromium (Cr) content, and about twice the nickel (Ni) and molybdenum (Mo) content of 316L, giving it a higher temperature...
904L (N08904,, 14539) super austenitic stainless steel contains 19.0-21.0% 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, which is a proprietary material introduced from the French H·S company. It has good activation-passivation transformation ability, excellent corrosion resistance, good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, phosphoric acid, good pitting resistance in neutral chloride ion media, and good crevice corrosion and stress corrosion resistance. It is suitable for various concentrations of sulfuric acid below 70°C, and has good corrosion resistance in acetic acid of any concentration and any temperature under normal pressure, and mixed acid of formic acid and acetic acid.
AISI 904L stainless steel is a high-alloy austenitic stainless steel with extremely low carbon content. The combination of high chromium, nickel, molybdenum and copper gives the steel good uniform corrosion resistance. The addition of copper makes it have strong acid resistance, can resist various organic and inorganic acids, especially chloride crevice corrosion and stress corrosion cracking, is not easy to have corrosion spots and cracks, and has strong pitting resistance. AISI 904L has good corrosion resistance in dilute sulfuric acid. The alloy is a steel suitable for dilute sulfuric acid strong corrosive medium. It is also resistant to seawater, has good machinability and weldability, and is widely used in construction, chemical, medical and other industries.
AISI 904L stainless steel is commonly used in reactors in petroleum and petrochemical equipment; sulfuric acid storage and transportation equipment, such as heat exchangers; flue gas desulfurization equipment in power plants, such as towers, flues, shutters, internal components, sprayers, fans, etc. in organic acid treatment systems; seawater treatment equipment, such as seawater heat exchangers; paper industry equipment, sulfuric acid, nitric acid equipment; chemical equipment, pressure vessels, food equipment such as acid making and pharmaceutical industries.
-Chemical and petrochemical industries. AISI 904L (WNR1.4539) ASTM A 249, X1NiCrMoCu25-20-5
-Paper and pulp industries. AISI 904L (WNR1.4539) ASTM A 249, X1NiCrMoCu25-20-5
- Piping systems. AISI 904L (WNR1.4539) ASTM A 249, X1NiCrMoCu25-20-5
- Heat exchangers. AISI 904L (WNR1.4539) ASTM A 249, X1NiCrMoCu25-20-5
-Components of gas purification plants. AISI 904L (WNR1.4539) ASTM A 249, X1NiCrMoCu25-20-5
-Components of seawater desalination plants. AISI 904L (WNR1.4539) ASTM A 249, X1NiCrMoCu25-20-5
-Food, pharmaceutical and textile industries. AISI 904L (WNR1.4539) ASTM A 249, X1NiCrMoCu25-20-5
-Seawater treatment equipment, seawater heat exchangers, paper industry equipment, sulfuric acid, nitric acid equipment, acid production, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment
Production specifications by Womic Steel: 904L stainless steel pipes are available in a variety of production sizes in Womic Steel Production line, including seamless pipes and welded pipes. The outer diameter of seamless pipes usually ranges from 3 to 720 mm (φ1 to 1200 mm), with a wall thickness of 0.4 to 14 mm; the outer diameter of welded pipes usually ranges from 6 to 508 mm, with a wall thickness of 0.3 to 15.0 mm.
In addition, there are also various specifications such as square pipes and rectangular pipes, steel bar, plates, coils with stainless steel material for your choice in Womic Steel.
Chemical composition：
| C | Si | Mn | P | S | Cr | Ni | Mo | N |
| ≤0.02 | ≤0.70 | ≤2.00 | ≤0.030 | ≤0.010 | 19.0-21.0 | 24.0-26.0 | 4.0-5.0 | ≤0.1 |
Mechanical property：
| Density | 8.0 g/cm3 |
| Melting point | 1300-1390 ℃ |
| Status | Tensile strength
Rm N/mm2 |
Yield strength
RP0.2N/mm2 |
Elongation
A5% |
| 904L | 490 | 216 | 35 |
Welcome to contact us for more details !
sales@womicsteel.com
Post time: Oct-30-2024