904l Stainless Steel Seamless Pipe in Wuxi ,China

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Shanghai
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Min Order Qty:
3 m.t.
Supply Capability:
25000 m.t./month

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Item specifice:

Standard: ASTM Technique: Cold Rolled Shape: Round
Surface Treatment: Polished Steel Grade: 300 Series Certification: SGS
Thickness: 2 Length: 50.1 Net Weight: 25

Product Description:

 

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.

 

904l Stainless Steel Seamless Pipe in Wuxi ,China

904l Stainless Steel Seamless Pipe in Wuxi ,China

 

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Q:What's lined with stainless steel?
Stainless steel lining is a method of trenchless repair of underground pipes.
Q:Why is stainless steel magnetic?
Many customers often think that the magnet adsorption of stainless steel, to verify its merits and authenticity, and do not smoke without magnetism, that is good, genuine; smokers are magnetic, is considered a fake fake. In fact, this is a very one-sided, not practical, and the wrong way to identify, I hope the following content for your help!
Q:Stainless steel pipes can not be less than the amount of chromium
304 stainless steel tube as 304 steel pipe, in the dry clean atmosphere, have absolutely excellent anti-corrosion ability, but it will be moved to the beach area, with large amounts of sea salt fog, will rust quickly; and the good performance of 316 steel pipe. Therefore, it is not any kind of stainless steel, capable of corrosion and rust in any environment. Stainless steel is a very thin layer formed on the surface and the stability of the fine solid chromium rich oxide film (protective film), to prevent the infiltration of oxygen atoms, to oxidation, and the ability to obtain anti-corrosion. Once there are some reasons, this film was constantly destroyed, air or liquid oxygen atoms will continue to infiltrate or metal atoms of iron to keep out from the loose formation of iron oxide, the metal surface will be continuously corroded. Many of the surface damage form, more common in daily life are as follows: 1. stainless steel surface deposited dust or heterogeneous metal particles containing other metal elements of the attachment, in the humid air, condensed water and adhesion between the stainless steel, the two together into a micro battery, cause the electrochemical reaction, the film has been destroyed, called electrochemical corrosion. 2. stainless steel surface adhesion of organic juice (such as vegetables, soup, sputum), oxygen in the water under the circumstances, a long time, organic acid, organic acid on the surface of metal corrosion. 3., stainless steel surface adhesion contains acid, alkali and salt substances (such as decoration wall caustic soda, lime water splash), causing local corrosion. 4., in polluted air (such as containing large amounts of sulfide, carbon dioxide and nitrogen oxides in the atmosphere), in case of condensation water, the formation of sulfuric acid, nitric acid, acetic acid liquid point, causing chemical corrosion.
Q:What factory uses industrial stainless steel tube to be more?
For equipment manufacturing and maintenance, etc., the annual consumption of stainless steel pipe more than 20000 tons. Such industries mainly use sanitary or antibacterial grade stainless steel tube.
Q:304L stainless steel pipe can withstand 0.1MPA?
If you want to know how much pressure the steel pipe is under, you need to know the type of the stainless steel pipe.Pressure calculation formula of stainless steel management: pressure MPA=, tensile strength X40%X2X, wall thickness / outer diameterBut from my experience, generally speaking, stainless steel tubes can withstand 0. 1MPA. Unless it is used very thin stainless steel tube wall decoration.
Q:What does "stainless steel pipe 201304" mean?
304 stainless steel is a common stainless steel material, the density of 7.93 g/cm3, the industry is also called 18/8 stainless steel. High temperature resistance of 800 degrees, with good processability, high toughness characteristics, widely used in industry and furniture decoration industry and food and medical industry.
Q:Is galvanized steel pipe stainless steel pipe?
Galvanized steel pipe is a kind of welded steel pipe, and its essence is hot-dip galvanized coating on the inner and outer surface of welded steel pipe. Hope to be of help to you.
Q:What is sanitary stainless steel pipe?
Passivation layer: after polishing, it is necessary to immerse the steel pipe in the passivation bath, and then use the acid passivation liquid to oxidize the surface of the steel pipe to form a passivation layer, so as to achieve the anti-corrosion effect of the steel pipe
Q:What color is stainless steel? What color is stainless steel pipe culture?
Stainless steel tubes for industrial use are mostly iron gray, and civilian stainless steel is bright silver.
Q:Stainless steel why are rust?
In polluted air (such as atmosphere containing large amounts of sulfides, oxides of carbon and nitrogen oxides), condensate is formed when sulfuric acid, nitric acid, and acetic acid are subjected to condensation, resulting in chemical corrosion.

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