Austenitic SS 904L Sheets and Plates
SS 904L Sheet and SS 904L Plate 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 Sheet/Plate 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 Sheet and SS 904L Plate 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.
Specification
The stainless steel 904L sheet and plate specified by ASTM standard as ASTM A 240 or ASME SA-240 are readily available in different types such as, for example, SS 446 Plane sheet and Plate, Shim, Thin, Perforated, Polished, Diamond, Chequered, Hot rolled, Cold rolled, Annealed, Soft annealed , coils, clad plate, strip etc.
As per availability and requirement Grade 446 Sheets and Plate can be manufactured in different types burt, also they also has different types of finishing on surface such as for example, Brushed , Polished t, Mirror finish, Mirror polished, Hot rolled(HR), Cold rolled (CR), 2B,2D, BA NO(8), SATIN(Met with Plastic coated).
Application
SS 904L Sheet and Plate are utilized in multiple industrial needs, together with – Chemical Industries, Oil & Gas, Aerospace, organic compound, power station, Pulp & Paper, Environmental, Water comes & Engineering.
