Duplex 2205 S31803 S32205 Pipe Seamless Pipe

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 300 Series
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Welded
• Surface Treatment: Pickling
• Place of Origin: Zhejiang China
• Alloy or Not: Is Alloy
• Delivery Time: 8-14 Days
• Model Number: 304, 304L, 201, 316, 316L, 321, 317L, 309S, 310S,
• Application: Construction, Decorative, etc.
• Welding Line Type: ERW
• Processing Service: Bending, Welding, Punching, Decoiling, Moulding, C
• Item: 304 Inox Steel Tubing Steel Pipe
• Keyword: Stainless Steel Pipe
• Length: 5.8m, 6m, 8m, 11.8m or as Required.
• Used: Production Equipment and Lines for Food, Beverages
• Transport Package: According to Customer Requirements
• Specification: OD 6mm-5000mm
• Trademark: FLK
• Origin: Wenzhou, Zhejiang, China
• HS Code: 7304419000
• Production Capacity: 5000000pieces/Year

Product Description

Product Description

The Duplex 2205, designated under UNS S31803 and UNS S32205, is a high-grade stainless steel known for its excellent combination of strength, corrosion resistance, and cost-effectiveness. The term "duplex" refers to its two-phase microstructure consisting of ferrite and austenite, which gives it these enhanced properties compared to conventional austenitic stainless steels like 304 and 316.

Characteristics of Duplex 2205:

• Corrosion Resistance: Duplex 2205 has better resistance to corrosion in various environments, particularly against pitting and crevice corrosion in chloride environments. Its high chromium, molybdenum, and nitrogen content contribute significantly to this resistance.

• High Strength: The mixed microstructure provides higher strength than single-phase austenitic stainless steels. This allows for lighter constructions and can lead to cost savings in material and handling.

• Good Weldability and Formability: Despite its strength, Duplex 2205 maintains good weldability and formability. However, specific procedures and care must be taken during welding to avoid forming detrimental phases.

Applications:

Duplex 2205 is extensively used in applications demanding high strength and excellent corrosion resistance:

• Oil and Gas Industries: Pipes and tubes for processing oil and gas where they are exposed to corrosive substances and high pressures.
• Chemical Processing: Equipment in chemical plants that process highly corrosive substances that could degrade lesser materials.
• Marine Environments: Components used in seawater environments, where corrosion resistance is critical.
• Pulp and Paper Manufacturing: Components that resist the corrosive effects of chemicals used in the process.

Standards and Specifications:

• ASTM A790: This specification covers seamless and welded ferritic/austenitic stainless steel pipe. Under this specification, both UNS S31803 and UNS S32205 are classified as Duplex 2205, although slight differences in the specific compositions exist, enhancing certain properties.

Duplex 2205's blend of properties makes it suitable for a range of industrial applications where both strength and corrosion resistance are required.

Product Parameters

1.	Item	Duplex 2205 S31803 S32205 Pipe Seamless Pipe
2.	Standard	ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456, DIN 17457,DIN 17459, JIS G3459, JIS G3463, GOS T9941,EN 10216, BS3605, GB13296,etc.
3.	Material	201,202,301,304,304L,304N,XM21,304LN,309S,310S,316,316Ti, 316L,316N,316LN,317,317L,321,329,etc.
4.	Specifications	Wall thickness	1.0-150mm(SCH10S-XXS)
		Outside diameter	3.0-2500mm(1/8"-100")
		Length	6m,5.8m,8m,11.8m,12m or as required.
5.	Surface	Pickling, annealing, polishing, bright, sand blast, hair line, etc.
6.	Price Term	Ex-work, FOB, CFR, CIF, or as required.
7.	Payment Term	T/T, L/C, Western Union.
8.	Export to	Singapore, Canada, Indonesia, Korea, USA, UK, Thailand,Saudi Arabia, Vietnam, , , India, Peru, Ukraine ,Brazil,South Africa, etc.
9.	MOQ	500kg
10.	Delivery Time	Prompt delivery or according to order's quantity.
11.	Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
12.	Application	widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc.
13.	Contact	If you have any question, please feel free to contact me.

Stee Grade	Chemical Composition %
	C	Cr	Ni	Mn	P	S	Mo	Si	Cu	N	Other
201	≤0.15	16.00-18.00	3.50-5.50	5.50-7.50	≤0.060	≤0.030		≤1		≤0.25
202	≤0.15	17.00-19.00	4.00-6.00	7.50-10.00	≤0.060	≤0.030		≤1		≤0.25
301	≤0.15	16.00-18.00	6.00-8.00	≤2.0	≤0.065	≤0.030		≤1.00
302	≤0.15	17.00-19.00	8.00-10.00	≤2.00	≤0.035	≤0.030		≤1.00
304	≤0.08	18.00-20.00	8.00-11.00	≤2.00	≤0.045	≤0.030		≤1.00
304L	≤0.035	18.00-20.00	8.00-12.00	≤2	≤0.045	≤0.030		≤1.00
305	≤0.12	17.00-19.00	11.00-13.00	≤2	≤0.045	≤0.03	Om	≤1.00
309S	≤0.08	22.00-24.00	12.00-15.00	≤2	≤0.045	≤0.030		≤1
310S	≤0.08	24.00-26.00	19.00-22.00	≤2	≤0.045	≤0.030		≤1.00
316	≤0.08	16.00-18.00	10.00-14.00	≤2	≤0.045	≤0.030	2.00-3.00	≤1.00
316L	≤0.035	16.00-18.00	10.00-14.00	≤2.00	≤45	≤0.03	2.00-3.0	≤1.00
317	≤0.08	18.00-20.00	11.00-14.00	2.00	≤0.045	≤0.030	3.00-4.00	≤1
317L	≤0.035	18.00-20.00	11.00-15.00	≤2.00	≤0.045	≤0.030	3.00-4.00	≤1.00
321	≤0.08	17.00-19.00	9.00-12.00	≤2	≤0.045	≤0.030		≤1.00			Ti5(C%-0.02 ~0.08
347	≤0.08	17.00-19.00	9.00-13.00	≤2.00	≤0.045	≤0.030		≤1.00			Nb≥10*C%

 

 

Product & Application

 

 

   Application of welded steel pipe,seamless steel pipe, cold hot rolled round pipe, and stainless steel pipe: construction material, buidlings, bridges, building decoration, chemical industry, car mainfold, water supply, petroleum pipeline, water pipe,boiler pipe, automobile pipe,hydraulic, building and equipment, pipeline