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25mm Seamless Duplex Stainless Steel 2205 Pipe Cold Drawn S31803 , ASTM A312 For Fluid , Oil

Categories Duplex Stainless Steel Pipe
Place of Origin: Wenzhou,China(Mainland)
Brand Name: chengang
Certification: ISO
MOQ: 500 KGS
Packaging Details: woven package or woden case, we can pack as client's requirement
Delivery Time: 15-60days
Payment Terms: T/T , AT SIGHT L/C
Supply Ability: 500 Ton/Tons per Month
Name: 2205 Duplex Stainless Steel Pipe
Application: Fluid pipe;Oil pipe; Structure pipe; Gas pipe
Thickness: 1-30mm
Outer Diameter: 6-720mm
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    25mm Seamless Duplex Stainless Steel 2205 Pipe Cold Drawn S31803 , ASTM A312 For Fluid , Oil

    25mm Seamless Duplex Stainless Steel 2205 Pipe Cold Drawn S31803 , ASTM A312 For Fluid , Oil

    Quick Detail:

    1,Application:Fluid pipe;Oil pipe; Structure pipe; Gas pipe and so on

    2,Outer Diameter:6-720mm



    Duplex stainless steel 2205 alloy is by 21% chromium, 2.5% nitrogen and 4.5% molybdenum nickel alloy consisting of duplex stainless steel.It has high strength, good impact toughness and good overall and partial stress corrosion resistance.


    1,Duplex stainless steel 2205 alloy with 316 l and 316 l austenitic stainless steel, alloy 2205 in pitting corrosion and crevice corrosion resistance is superior, it has the very high corrosion resistance, compared with austenitic, its lower thermal expansion coefficient, thermal conductivity is higher.

    2,Duplex stainless steel 2205 alloy compared with austenitic stainless steel, it is twice its compression strength, compared with 316 l and 317 l, designers can reduce the weight.Especially suitable for 2205 alloy + 50 ° F / 600 ° F temperature range, in the case of restricted (especially for welding structure), can also be used to lower the temperature.

    chemical component:

    C≤0.030 Mn≤2.00 Si≤1.00 p≤0.030 S≤0.020 Cr 22.0~23.0 Ni 4.5~6.5 Mo3.0~3.5 N0.14~0.20

    The corrosion resistance of duplex stainless steel 2205:

    1,homogeneous corrosion

    Because of the chromium content (22%), molybdenum (3%) and nitrogen content (0.18%), corrosion resistant properties of 2205 in most circumstances is better than 316 l and 317 l.

    2,The local corrosion:

    duplex stainless steel 2205 of chromium, molybdenum and nitrogen content in the oxidation and acid solution, the corrosion and the gap has a strong ability to resist corrosion.

    3,Resistance to stress corrosion

    duplex stainless steel 2205 microstructure helps to improve the ability of resistance to stress corrosion cracking of stainless steel.In a certain temperature, tension, the presence of oxygen and chlorine, austenitic stainless steel chloride stress corrosion will happen.As a result of these conditions is not easy to control, so the use of 304 l, 316 l and 317 l in this area is restricted.

    4,Corrosion fatigue

    The chemical composition of duplex stainless steel 2205 after 1900 ° / 1922 ° F (1040 ° / 1080 ° C) solid after annealing treatment, can obtain ideal microstructure 50 alpha / 50 gamma.If the heat treatment temperature higher than 2000 ° F, may cause the ferrite components increase.Like the rest of the duplex stainless steel, alloy 2205 vulnerable to the influence of the phase separation of the metal.Like the rest of the duplex stainless steel, alloy 2205 vulnerable to the influence of the phase separation of the metal.

    2205 duplex stainless steel processing:

    1,2205 duplex stainless steel hot forming

    2,2205 duplex stainless steel cold forming

    3,2205 duplex stainless steel heat treatment

    4,2205 stainless steel mechanical cutting

    5,2205 stainless steel welding performance


    petroleum,chemical industry,electric power,boiler,high temperature resistance


    Size:(6-720mm)*(1-30mm)*(1000-14000mm),We can also produce other specifications according to customer's requirements..

    1.Standard: ASTM A312,ASTM A213,ASTM A269,ASTM A790...

    2.Material: TP304,TP304L,TP316,TP316L,TP317,TP317L,309S,310S,TP321,347H,2205,2507,904...

    3. Productions requirement:cold drawing,precision rolling.


    Competitive Advantage:

    1,We have advanced NDT equipments for the tests such as Eddy Current test, Ultrasonic test, Hydraulic test and so on.

    2,We have ISO certificate, and the Third Party Inspection Certificates such as TUV, BV, Lloyd’s, SGS, etc, also can be provided according to customers’ requirements

    3,Wooden case package which is strong and suitable for sea transportation is our main method to pack the pipes. And the economical packing method such as packed in bundles is also welcomed by some customers.

    4,The tolerance control we use is +/-0.1mm on both inside and outside Diameter and Wall Thickness, which is much higher than international standard ASTM, DIN.

    5,The surface condition is one of our main advantages: in order to meet different requirements for surface condition, we have annealing and pickling surface, bright annealing surface, OD polished surface, OD & ID polished surface etc.

    6,In order to keep the inside surface of pipe clean and make it free from deburring, our company develops the unique and special technology --- Sponge Washing with high pressure.

    7,We have complete after-sale service to deal with the problems in time

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