JUDE STEEL

904L

904l stainless steel is high purity steel with low sulphur content and also non-stabilized austenitic stainless steel with low carbon content. Alloy 904L is super-austenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments.

904L stainless steel
USA
JP
DE
EUR
CN
ASTM
JIS
DIN
EN
GB
940L
SUS 890L
-
1.4539
015Cr21Ni26Mo5Cu2

Chemical Composition

The typical chemical composition is shown in the table below.

Grade
Standard
904L Chemical Composition
C
Si
Mn
Cr
Ni
P
S
Mo
Others
≤ %
≤ %
%
%
%
≤ %
≤ %
≤ %
%
904L
ASTM A240
0.02
1
2
19 - 23
23 - 28
0.045
0.035
4 - 5
Cu: 1.0 - 2.0
1.4539
EN 10088-2
0.02
0.7
2
19 - 21
24 - 26
0.045
0.01
4 - 5
Cu: 1.0 - 2.0
SUS 890L
JIS G 4304 | JIS G 4305
0.02
1
2
19 - 23
23 - 28
0.045
0.03
4 - 5
Cu: 1.0 - 2.0

Mechanical Properties

The mechanical properties are given in the table below.

Grade
Standard
904L Mechanical Properties
Tensile Strength
Yield Strength 0.2%
Elongation >%
Hardness
(MPa) ≥
(MPa) ≥
HRB ≤
HB ≤
904L
ASTM A240
490
220
36
90
150
1.4539
EN 10088-2
520
220
30
90
220
SUS 890L
JIS G 4304 | JIS G 4305
490
215
35
90
187

Properties & Typical Applications

Type 904L is low in carbon content (0.020% Max), no carbide is precipitated under normal heat treatment and welding conditions. It has good activation-passivation transformation ability and excellent corrosion resistance. It has good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid and phosphoric acid. It has good pitting resistance in neutral medium containing chloride ions, and has good crevice corrosion resistance and stress corrosion resistance. The steel is widely used in petroleum, petrochemical equipment, seawater treatment equipment, paper industry equipment, sulfuric acid, nitric acid equipment, acid making, pharmaceutical industry and other chemical equipment, pressure vessel, food equipment and so on.

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