There are three types of 904L stainless steel plates: hot rolled stainless steel plates, cold rolled stainless steel plates and polished stainless steel plates.
904L super austenitic stainless steel belongs to low carbon high nickel, molybdenum austenitic stainless acid resistant steel. It has good activation-passivation transformation ability, excellent corrosion resistance, good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid and phosphoric acid, good pitting resistance in neutral chloride ion medium, and good anti-crevice corrosion and anti-stress corrosion performance. It is suitable for sulfuric acid of various concentration below 70℃. It has good corrosion resistance to acetic acid of any concentration and temperature under atmospheric pressure.
Grades and standards: UNS N08904, DIN1.4539, ASTM A240 (stainless steel series in the new standard, nickel-based alloy series in the original standard ASME SB-625), SUS890L
904L stainless steel plates Range of application:
1. Petroleum and petrochemical equipment, such as reactors in petrochemical equipment, etc.
2. Sulfuric acid storage and transportation equipment, such as heat exchangers.
3. The flue gas desulfurization unit of the power plant mainly USES the tower body of the absorber, the flue, the door panel, the inner parts, the spray system and so on.
4. Scrubbers and fans in organic acid treatment systems.
5. Seawater treatment plant, seawater heat exchanger, papermaking industry equipment, sulfuric acid, nitric acid equipment, acid production, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment.
6. Pharmaceutical factory: centrifuge, reactor, etc.
7.Plant foods: soy sauce cans, cooking wine, salt shakers, equipment and dressings.
8. Strong corrosive medium for dilute sulfuric acid 904L is a matched steel.
904L stainless steel plates Chemical properties:
|
Grade |
% |
Ni |
Cr |
Mo |
Co |
C |
Mn |
Si |
p |
s |
|
904L |
mix |
23 |
19 |
4 |
1 |
|
|
|
|
|
|
max |
28 |
23 |
5 |
2 |
0.02 |
2 |
1 |
0.045 |
0.035 |
904L stainless steel plates mechanical properties:
|
Density |
8.0 g/cm3 |
|
Melting point |
1300-1390 ℃ |
|
Grade |
Tensile strength
Rm N/mm2 |
Yield Strength
RP0.2N/mm2 |
Elongation A5 % |
|
904L |
490 |
216 |
35 |
If you need 904L stainless steel plates, please contact us any time.
