ASTM A276 Duplex 904L Stainless Steel Round Bar for Chemical Industry

• Type: Stainless Steel Bars
• Standard: ASTM, AISI, JIS, DIN, EN
• Grade: Duplex Stainless Steel
• Certification: ISO, ASTM
• Shape: Round
• Technique: Hot Rolled, Cold Drawn, Forged
• Model NO.: 904L
• Surface Treatment: Pickling
• Surface: Lack, Peeled, Polishing, Bright, Sand Blast, Hl
• Diameter: 4mm-720mm(Stright), 2mm to 20mm (Wire Rod)
• Length: as Requirement
• Diameter Tolerance: H9, H11, H13, K9, K11, K13 etc
• Mtc: En 10204/3.1
• Keyword: Stainless Steel Bar
• Transport Package: as Customer′s Requirement
• Trademark: ZYTC
• Origin: Tianjin, China
• HS Code: 72221100
• Production Capacity: 500 Tons/Month

Product Description

1: Brief Introduction Of 904L stainless steel  
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
2: Chemical Composition 

Tianjin Zhongyantiancheng Steel Co.,Ltd
Commodity	Stainless Steel Bar/Stainless Steel Round Bar/Stainless Steel Rod
Material	904L
Standard	GB	JIS	ASTM/ASME	DIN
	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
Diameter	4mm-720mm
Length	Cut as your requirement
Surface	Black/Bright
manufacture	Hot Rolled/Cold Drawn/Forged
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.
Note	We can also do other materials

3: 904L Stainless Steel Round Bar Process 

4: 904L Stainless Steel Round Bar Diameter Tolerance 

5: Company Introduction