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Industry Welded Duplex Seamless Steel Pipe , 2205 Sanitary Industrial Steel Pipe

Industry Welded Duplex Seamless Steel Pipe , 2205 Sanitary Industrial Steel Pipe
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Product: Super Duplex ASTM 2205 Welded Stainless Steel Pipe
Grade: 304,316L,2205,310S,904L,2507
Surface: Polishing/Mill Finish
Technique: Cold Rolled
Type: Seamless Or Weld
Application: Industry,Construction,Decorative,etc
Thickness: 0.3mm ~ 200mm
OD: 1mm ~ 2500mm
Length: Max 12m 5.8m,6m,8m,11.8m Or As Required
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industrial steel pipe


stainless steel seamless pipe

Basic Infomation
Place of Origin: CHINA
Brand Name: HAOSTEEL
Certification: ISO9001
Model Number: HS2205 2507
Payment & Shipping Terms
Packaging Details: Woven bags and plastic strips inside packing, wooden / iron pallet and steel strips outside packing.
Delivery Time: 5-10 working days after order confirmed and receive deposit
Supply Ability: 5000tons per month
Product Description

Duplex stainless seamless steel tube/Super Duplex ASTM 2205 Welded Stainless Steel Pipe




The main alloy elements of duplex steel are Cr, Ni, Mo and N.Among them, Cr and Mo increased the content of ferrite and Ni and N were austenite stable elements.Some types of steel have elements such as Mn, Cu and W.Cr, Ni, Mo can improve corrosion resistance.The resistance to pitting corrosion and crack corrosion is particularly good in the environment containing chloride.

The microstructure of duplex stainless steel is about 50% austenite and 50% ferrite, so the duplex products have the physical properties of ferrite and austenite.

The duplex stainless steel is resistant to cracks caused by chloride stress corrosion of austenite and has good resistance to local corrosion.Duplex steel is easy to weld into shape, similar to the grade of austenite.
According to different contents of chromium, nickel and molybdenum, duplex stainless steel is divided into four categories: precision, duplex, superduplex and superduplex.This duplex stainless steel is about twice as productive as the austenite and can be used to design thinner tubing.
Higher hardness provides better wear resistance for high precision tubes.
Two phase stainless steel 2205 standard no. : ASTM A240/ a240m-01 two phase stainless steel 2205 alloy is a composite stainless steel composed of 22% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy.It has high strength, good impact toughness and good overall and local resistance to stress corrosion.

Chemical Composition

Grade C Si Mn P S Cr Ni Mo N Cu
310S ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 24.00~26.00 19.00~22.00 -    
316 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 16.00~18.00 10.00~14.00 2.00~3.00    
316L ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.03 16.00~18.00 12.00~15.00 2.00~3.00    
321 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 17.00~19.00 9.00~13.00 -    
430 ≤0.12 ≤0.75 ≤1.00 ≤0.040 ≤0.03 16.00~18.00


2205 ≤0.03 ≤1.00 ≤2.00 ≤0.030 ≤0.015 22.00~23.00 4.5~6.5 2.5~3.5    
2507 ≤0.03 ≤0.08 ≤1.20 ≤0.035 ≤0.015 24.00~26.00 6.00~8.00 3.0~5.0    
904L ≤0.02 ≤1.00 ≤2.00 ≤0.045 ≤0.035 19.00~23.00 23.00~28.00 4.0~5.0   1.0~2.0



OD 1mm-1220mm
Wallthickness 0.2mm-60mm
Max length as your requirements



303se,304,TP304,TP304L,305,306,309S,310S,310H, TP316,TP316L,316Ti,317,317L,317Ti,321,SUS321,347,SUS347,440C,440F,C-276,Ni80Cr20,Ti,630,631,632,XM7,329JI,2205,2207,S32750,S32550,S32154,S32183, 904L,etc

Minimum order 1 Ton
Standards ASTM A511 A269 A312 A213, GB/ T14976-2002 GB 13296-91
Surface polish, primary colour,matt,mirror face ,wire drawing
Productions requirement cold drawing, cold rolling, precision rolling
Main markets Asia,Europe,Middle-eastarea,Africa,SouthAmerica,North America, etc
Certification ISO
Application chemical industry, metallurgy, construction, food stuff, water conservancy etc.


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Industry Welded Duplex Seamless Steel Pipe , 2205 Sanitary Industrial Steel Pipe 0 Industry Welded Duplex Seamless Steel Pipe , 2205 Sanitary Industrial Steel Pipe 1



Production of 2205 duplex stainless steel is widely used in: neutral chloride environment oil refining industry, petrochemical and chemical industry, chemical industrial pipelines, oil and gas industry, pulp and paper industry urea fertilizer industry, phosphate fertilizer industry, the water environment, energy and environmental protection industry, light industry and food industry, food and pharmaceutical industry equipment high strength structure

pressure vessels, high pressure storage tanks, high pressure pipelines, heat exchangers (chemical processing industry).

petroleum and natural gas pipeline, heat exchanger pipe fittings.

· sewage treatment system.

· pulp and paper industrial classifier, bleaching equipment, storage and treatment system.

· rotary shaft, press roller, blade, impeller, etc. in high strength and corrosion resistant environment.

· cargo boxes for ships or trucks

· food processing equipment

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