UNS N08904 also know as 904L falls in the austenitic stainless steel group. It has high molybdenum and extremely low carbon content. Copper content in the alloy greatly improves resistance to strong reducing acids, especially (H2SO4) sulphuric acid. 904L has better resistance ti chloride attack against both stress corrosion cracking and crevice / pitting corrosion.
With excellent weldability and formability 904L also maintain non-magnetic state in all conditions. 904L provides excellent toughness, even down to cryogenic temperatures with its austenitic structure.
Standard | 904L |
---|---|
UNS | N08904 |
Werkstoff Nr. | 1.4539 |
Alloy 904L | |
Ni | 23 – 28 |
Mo | 4 – 5 |
Cr | 19 – 23 |
Cu | 1 – 2 |
C | 0.02 max |
Mn | 2.0 max |
Si | 1.0 max |
P | 0.045 max |
S | 0.035 max |
Density | 8.05 g/cm3 |
Melting Point | 1350 °C (2460 °F) |
Tensile Strength | Psi – 71000 , MPa – 490 |
Yield Strength (0.2%Offset) | Psi – 32000 , MPa – 220 |
Elongation | 35 % |
904L uses in Oil and Gas Industry
904L uses in Paper & Pulp Industry
904L uses in Chemical Industry
Price of SS 904L Seamless Pipe : $ 14000 ~ $ 18500 USD/Ton