General Description

904L is an austenitic stainless steel with low carbon for use under severe corrosive conditions. It contains 25% nickel and 4.5% molybdenum which provide good resistance to chloride stress corrosion cracking. 904L has superior corrosion resistance in comparison with 316L and 317L. Due to addition of Cu, this alloy has excellent corrosion resistance agianst reducing acids such as sulfuric acid and phosphoric acid.

Common applications are production and transport of sulfuric acid, metal pickling in sulfuric acid, paper and allied industries, Chemical and pharmaceutical industries.

Chemical Composition

Grade Fe% Ni% Cr% Mo% Cu% C% Mn% Si% S% P%
904L Bal. 23-28 19-23 4.0-5.0 1.0-2.0 Max 0.02 Max 2.0 Max 1.0 Max 0.035 Max 0.045

Specifications

Grade UNS Werkstoff
904L N08904 1.4539

Physical Properties

Grade Density
904L 8.0 g/cm3

Mechanical Properties

Grade Tensile Strength Yield Strength σp0.2/MPa Elongation
 
904L Min 490 Mpa Min 215 Mpa Min 35%

Our Production Standard

Standard Bar Forging Sheet/Plate Tube/Pipe Fittings
ASTM ASTM A479 ASTM A484 ASTM A240 ASTM A312 ASTM B366

Size Range

904L bar, rod, forging, plate, sheet, pipe, fittings and 904L welding wire are available.

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