Loading Port:Shanghai
Payment Terms:TT OR LC
Min Order Qty:3 m.t.
Supply Capability:25000 m.t./month
904L STAINESS STEEL
UNSN08904
DIN W.NR.1.4539
(Introduction of Commodity)
Similar Grade
UNS | ASTM A240 | Trademark |
UNS N08904 | SUS890L | 904L |
(Chemical Component)
Alloy | % | Ni | Cr | Cu | Mo | C | Mn | Fe | Si | P | S |
904L | Min | 23 | 19 | 1 | 4 | Balance | |||||
Max | 28 | 23 | 2 | 5.0 | 2 | 1 | Balance | 0.045 | 0.035 |
(Physical Properties)
Density | Fusion Point |
8.0g/cm3 | 1300-1390°C |
Mechanical Property
Alloy and state | Tensile Strength | Yield Strength | Elongation |
RM N/MM2 | RP0.2N/MM2 | A5% | |
904L | 490 | 216 | 35 |
904L is a fully austenitic structure, and the general content of high molybdenum austenitic stainless steel, 904L is not sensitive to the precipitation of the ferrite and the alpha phase.
Application
1. petroleum, petrochemical equipment, such as petrochemical equipment in the reactor, etc..
2. Storage and transportation equipment, such as heat exchangers, etc..
3. Power plant flue gas desulfurization device, the main use of the site are: absorption tower body, flue, file door, interior, spray system, etc..
4. Organic acid treatment system of scrubber and fan.
5. Seawater treatment plant, sea water heat exchanger, paper industry equipment, sulfuric acid, nitric acid equipment, acid, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment.
6 .Pharmaceutical factory: centrifuge, reactor, etc..
7. Plant food: cans of soy sauce, cooking wine, salt, and dressing equipment.
8. Most suitable for dilute sulfuric acid and strong corrosive medium
Surface Finish :
Surface finish | Characteristics and application |
No.2B | The surface brightness and flatness of no2B is better than no2D. then through a special surface treatment to improve its mechanical properties, No2B could nearly satisfy comprehensive uses. |
No.3 | Polished with abrasive belt of git#100-#200, have better brightness with discontinuous coarse stria, used as inner and external ornaments for building, electrical appliances and kitchen utensils etc. |
No.4 | Polished with abrasive belt of grit #150-#180,have better brightness with discontinuous coarse stria, but thinner than No3, are used as bathtub buildings inner and external ornaments electrical appliances kitchen utensils and food processing equipment etc. |
HL | Polished with abrasive belt of grit #150-#320 on the NO.4 finish and has continuous streaks, mainly used as buildings ornaments elevators, door of building, frontal plate etc. |
BA | Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror, kitchen apparatus, ornament etc. |
8K | The product have excellent brightness and prefer reflexivity can to be the mirror. |
