904L Stainless Steel Plate,904 stainless steel sheet,stainless steel sheet 904
904 stainless steel sheet
stainless steel sheet 904
We are a professional supplier of hot rolled alloy 904L stainless
steel plates, coils and cold rolled alloy 904L stainless steel
sheets and rolls with various size in plain and embossed patterns
|Product||UNS N08904/904L Stainless Steel Plate and Sheet|
|Finish||2B, No.1, 1D|
|Standard||ASTM A240M/A480M, JIS G4304, JIS G4305, EN 10088/3|
Alloy 904L (UNS N08904) is a superaustenitic stainless steel that
is designed for moderate to high corrosion resistance in a wide
range of process environments. The combination of high chromium and
nickel content, coupled with additions of molybdenum and copper,
assure good to excellent corrosion resistance.
With its highly alloyed chemistry — 25% nickel and 4.5% molybdenum,
904L provides good chloride stress corrosion cracking resistance,
pitting and general corrosion resistance superior to 316L and 317L
molybdenum enhanced stainless steels.
Alloy 904L was originally developed to withstand environments
containing dilute sulfuric acid. It also offers good resistance to
other inorganic acids such as hot phosphoric acid as well as most
Alloy 904L is easily welded and processed by standard shop
The high content of alloying elements in 904L gives the alloy
exceptionally good resistance to uniform corrosion.
904L was originally developed to withstand environments containing
dilute sulfuric acid, and is one of the few stainless steels that,
at temperatures up to 95°F (35°C), provides full resistance in such
environments within the entire concentration range of 0 to 100%.
904L also offers good resistance to a number of other inorganic
acids, such as phosphoric acid and most organic acids. However,
acids and acid solutions containing halide ions can be very
aggressive, and the corrosion resistance of 317L, 317LMN and 904L
may be insufficient.
Fractional distillation of tall oil often needs better material
than 316L or even the more frequently used 317LMN. In these hot
concentrated caustic solutions, the corrosion resistance is mainly
determined by the nickel content of the material. With a nickel
content of 25%, 904L has proven to be a good alternative to most
conventional stainless steels.
Conventional stainless steels such as 304L and 316L are susceptible
to chloride stress corrosion cracking (SSC) under certain
conditions. Resistance to SSC increases with the increased content
of nickel and molybdenum. Therefore, the higher performance
austenitic stainless steels such as 904L have very good resistance
to SSC. The table in the upper right corner shows resistance to SSC
in a chloride solution under evaporative conditions. High
performance austenitic steels and duplex stainless steels clearly outperform 316L.
Our service: The company has equipped with many international
standard stainless steel processing facilities such as: Coil
Leveling Machine, Edge Slitting Machine, Precision Water Jet
Cutting Machine, Laser Cutting Machine, HL, NO.4 and 8K Polishing
Machine, Embossing Machine and Bending Machine. Based on our large
stock and advanced processing equipment, we can provide
professional products and service for you with competitive