Austenitic SS 904L Flat
SS 904L flat are high purity steels with low sulphur content and also non-stabilized austenitic stainless steel with low carbon content. Alloy 904L (UNS N08904) is a super austenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments.
Chemical Properties
|
GRADE |
Cr |
Ni |
Mo |
Mn |
Si |
P |
Cu |
S |
Fe |
|
|---|---|---|---|---|---|---|---|---|---|---|
|
SS 904L |
Min |
19 |
23 |
4 |
– |
– |
– |
1 |
– |
– |
|
Max |
23 |
28 |
5 |
2 |
1 |
0.045 |
2 |
0.03 |
BALANCE |
Properties
SS 904L flat with its high alloying element gives the alloy exceptional good resistance to uniform corrosion. The higher performance austenitic stainless steels such as 904L have very good resistance to SSC.
Mechanical Properties
|
Grade |
Tensile Strength |
Yield Strength |
Elongation |
Hardness, MAX |
|---|---|---|---|---|
|
[MPA] |
[MPA] |
(% in 50mm) min |
HRB |
|
|
SS 904L |
490 |
220 |
35 |
90 |
Alloy 904L can be easily welded and processed by standard fabrication process. 904L is quite ductile and forms easily. The addition of molybdenum and nitrogen implies more powerful processing equipment may be necessary when compared with the standard 304/304L grades.
Physical Properties
|
Grade |
Density (g/cm3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Melting Range |
Specific Heat (J/Kg.K) |
Electrical Resistivity (μΩ.m) |
|---|---|---|---|---|---|---|---|
|
20-100°C |
at 100°C |
0-100°C |
at 20°C |
||||
|
SS 904L |
7.85 |
190 |
15.3 |
12.9 |
1300-1390 |
450 |
95.2 |
SS 904L flat 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.
Application
SS 904L flat are utilized in multiple industrial needs, together with – Chemical Industries, Oil & Gas, Aerospace, organic compound, power station, Pulp & Paper, Environmental, Water comes & Engineering.
Shalco Industries is a manufacturing company of Flat in India and Global Supplier.
