Welding of duplex stainless steel pipe with good performance

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China main port
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TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
4000 m.t./month

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Detail infomation

Standards: ASTM/ASME A789/SA789, A790/SA790,A450,A530

Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2),

UNS32760(1.4501)

Chemical Composition

Grade

C

 max

Si

max

Mn

max

P

max

S

max

Cr

Ni

Mo

N

UNS S32750

0.030

0.8

1.2

0.030

0.015

24.0-26.0

6.0-8.0

3.0-5.0

0.24-0.32

UNS S31803

0.030

1.0

2.0

0.020

0.020

21.0-23.0

4.5-6.5

2.5-3.5

0.08-0.20

UNS S31500

0.030

1.0

1.2-2.0

0.030

0.030

18.0-19.0

4.5-5.5

2.5-3.5

0.05-0.10

 

Physical Properties

Grade

Y.S.MPa min

T.S.Mpa min

Elongation %

Hardness HRC

UNS S32750

550

800

15

20

UNS S31803

450

620

25

20

UNS S31500

440

630

30

20

Supplementary Testing :

we also carry out on the manufactured products supplementary testing.

  • Eddy Current Testing

  • O.P Testing

Radiography Testing

  • Corrosion Testing

  • Micro Testing

Macro Testing

  • IGC Testing

  • Ultrasonic testing

Liquid Penetrate testing

 


 

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Q:Stainless steel pipe 301 material and 304 material what is the difference?
304 is a versatile stainless steel which is widely used in the manufacture of equipment and parts requiring good overall performance (corrosion resistance and formability)
Q:Stainless steel pipes can not be less than the amount of chromium
The chromium content of stainless steel is generally not less than said first why stainless steel tube is not easy to rust 12%-304 stainless steel tube, then why stainless steel will rust stainless steel is not easy to have a great relationship with the composition of stainless steel rust. In addition to iron, stainless steel contains chromium, nickel, aluminum, silicon and so on.
Q:304 stainless steel seamless tube weight how to calculate?
The common marking methods in the market are 00Cr19Ni10, SUS304, in which 00Cr19Ni10 is generally used to indicate standard production of the national standard. Generally speaking, ASTM standard production is indicated, and SUS 304 represents standard production.
Q:What does "stainless steel pipe" DN mean?
Nominal diameter is the size of all piping accessories in the piping system. The nominal diameter is a convenient round integer for reference and is not strictly related to the processing size. The nominal diameter follows the letter "DN" followed by a number sign.
Q:Does stainless steel pipe belong to hardware?
Hardware refers to gold, silver, copper, iron, tin, five kinds of metal materials, carbon steel and stainless steel is iron upgrade, naturally belongs to the hardware.
Q:How much more expensive is 304 stainless steel than 201?
304 now it's about 20000 yuan a ton, and 201 is about 15000 tons.
Q:Why can't stainless steel tubes be cut with acetylene?
That is because the iron element in the high temperature, if the above 99,6% will occur on the oxygen oxidation phenomenon is very strong, because of the heat transfer cycle, in order to make the cutting to continue uninterrupted, continuous heating it when cutting calories.
Q:What's the difference between stainless steel pipe or stainless steel composite pipe?
Stainless steel is also divided into several kinds of 200201300301304,The market is generally 301 material, 304 of the best results, followed by 301.
Q:Stainless steel seamless steel tube, ordinary seamless steel pipe, which is good?
Stainless steel pipe in the nickel element is relatively high, nickel is pipe rust proof, wear-resistant, mainly corrosion-resistant. The strength of the steel pipe is generally related to the content of carbon in the pipe. The ordinary steel pipe is carbon steel pipe, and the compressive strength is generally better than that of the stainless steel tube.
Q:Under what circumstances can the stainless steel pipe be welded by argon arc, and under what conditions can the arc welding be used?
From the economic point of view and flexibility, arc welding is good, from the efficiency aspect, of course, argon arc welding is higher, the effect is better, and also more mechanized. If it is small batch, it will choose arc welding.

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