904L (UNS N08904) is a superaustenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance.
With its highly alloyed chemistry-25% nickel and 4.5% molybdenum, 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.
Alloy 904L was originally developed to withstand environments containing dilute sulfuric acid. It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids.
Alloy 904L is easily welded and processed by standard shop fabrication practices.
The high content of alloying elements in 904L gives the alloy exceptionally good resistance to uniform corrosion.
904L was originally developed to withstand environments containing dilute sulfuric acid, and is one of the few stainless steels that, at temperatures up to 95°F (35°C), provides full resistance in such environments within the entire concentration range of 0 to 100%. 904L also offers good resistance to a number of other inorganic acids, such as phosphoric acid and most organic acids. However, acids and acid solutions containing halide ions can be very aggressive, and the corrosion resistance of 317L, 317LMN and 904L may be insufficient.
Fractional distillation of tall oil often needs better material than 316L or even the more frequently used 317LMN. In these hot concentrated caustic solutions, the corrosion resistance is mainly determined by the nickel content of the material. With a nickel content of 25%, 904L 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. Resistance to SSC increases with the increased content of nickel and molybdenum. Therefore, the higher performance austenitic stainless steels such as 904L have very good resistance to SSC. The table in the upper right corner shows resistance to SSC in a chloride solution under evaporative conditions. High performance austenitic steels and duplex stainless steels clearly outperform 316L.
Other Grades:
201,202,21-4N,301,302,301L,303,303Se,304,304L,304H,304LN,304N,305,S38400,308,309,309S,310,310s,
316,316L,316H,316Ti,316N,316LN,317,317L,317LMN,317LN,321,321H,347,347H,S3100,S31803,S3205,
S32304,S31200,S31260,S32507,405,409,429,430,430F,434,444,403,410S,410,416,420,420F,431F,440A
440B,440C,440F,610,630,631,632,635,660,Alloy 200,Monel 400 ,Alloy K-500 ,Inconel 600 , Incconel 601,
Inconel 625 , Inconel 718 , Alloy 800 ,Alloy 800H,Alloy 800HT,Inconel 825,Alloy 276, Alloy 20, Alloy 59
Tianjin Zhongyantiancheng Steel Co.,Ltd
Commodity
Stainless Steel Flat Bar
Material
904L
Standard
GB
 JIS
ASTM/ASME
DINÂ
015Cr21Ni26Mo5Cu2
NO
904L
1.4539
Chemical Composition
C
Mn
P
S
<=0.02
<=1.50
<=0.045
<=0.03
Si
Cr
N
Ni
<=1.00
30--35
<=0.01
19.0-23.0
Thickness
3mm-30mm
Width
10mm-300mm
Length
Produce as customers' request
Surface
No.1/HL/Birght
manufacture
Hot Rolled
Packing
Packed in bundles with standard export sea-worthy package
Delivery Time
Within 15 working days, according to customers' quantities
Quality
High Quality.SGS inspection is accepted if needed
Place of Origin
Tianjin
Productivity
500 MT/Month
Payment
T/T,L/C
MOQ
1 MT
Application
Foodstuff, Gas, metallurgy, biology, electron, chemical etc.
3:Stainless Steel Plate/Coil/Flat Bar Process:
4:Stainless Steel Plate/Flat Bar Package:
5:About us:
Tianjin Zhongyantiancheng Steel Co.,Ltd(short for ZYTC ) is a professional manufacturer and exporter of steel products in China, located in Tianjin Beichen District, having the biggest port in North China.
With 20 years of development, the group has become the leader in steel, product variety, complete specifications and so on in North China market, large inventories more than 100,000 tons are maintained all the time.
ZYTC is specialized in steel products, especially Stainless steel pipe,Stainless steel bar,Stainless steel plate (TG,KSK,BG,Krupp), Round bar(SHOUGANG,DAYE), Spiral pipe(LIDA), Aluminum steel plate,Aluminum pipe ,Copper and so on .Â
ZYTC has cooperated with Tianjin Seamless Steel Tube Plant(TPCO), Baotou Steel Pipe Plant, Chengdu Steel Pipe Plant, Anshan Steel Pipe Plant,Baoshan Steel Pipe Plant and other steel pipe plants.Round bar cooperated with Beijing shougang goup,Tonggang steel group, Daye steel bar group ,Benxi bengang group an so on , Baotai titanium group,Baoji Lixing group,Stainless steel plate cooperated with Shanxi TAIGANG Steel Plate grouop,Baogang group,Shanghai Kelubo group ,and Puxiang steel group. all these corporations mentioned above are our shareholder partners.Â
ZYTC principle is: supplying the best products and service,being the best supplier.
The company can make steel product according to particular specifications and materials. ZYTC will perfect our quality management system and supply products of high quality to our customers.
We are all looking forward to establishing business relationships with customers all over the world!
6:Why choose us?
* More than 20 years experience in stainless and aluminum steel fields.
* Samples available.
* Specialist metallurgic advice and flexible service.
* High level of expertise, in-depth product knowledge.
* Competitive price, high quality,rich experiences and high reputation
* Delivered on time.
* Good after-sale service.
* Well recognized and trusted by customers.
7: Other productions:
Â
DIN1.4539 904L Duplex Stainless Steel Flat Bar with Competitive Price
Model NO.: 904L
Thickness: 3mm-30mm
Width: 10mm-300mm
Length: Normally 6 Meters or as Requirement
Tolerance: -+0.02%
Mtc: En 10204/3.1
Trademark: TISCO, LISCO, ZPSS, KRUPP
Transport Package: as Customer′s Requirement
Origin: China
HS Code: 72199000
1:Brief Introduction Of 904L stainless steel: