Stainless Duplex Seamless Steel Pipe 31500

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Loading Port:
Ningbo
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
5000 m.t./month

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Product Description:

1、Structure of Stainless Duplex Seamless Steel Pipe 31500 Description:

    Duplex Stainless steel pipe and tubing are used for a variety of reasons: to resist corrosion and oxidation, to resist high temperatures, for cleanliness and low maintenance costs, and to maintain the purity of materials which come In contact with stainless. The inherent characteristics of stainless steel permit the design of thin wall piping systems without fear of early failure due to corrosion.



2、Main Features of the Duplex Seamless Steel Pipe 31500: 

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

•Reasonable price



3、Duplex Seamless Steel Pipe 31500 Images:






4Duplex Seamless Steel Pipe 31500 Specification:


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




5、FAQ of Duplex Seamless Steel Pipe 31500: 


How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.


How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Any question, pls feel free to contact us !


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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:What kind of stainless steel square tube is used in ordinary square tubes?
General specifications of stainless steel tube at the inner diameter and wall thickness, the length can be decided according to the needs of consumers, the common market of stainless steel pipe specifications are: diameter more than 6.0mm, the wall thickness below 13mm; diameter greater than 30mm, the wall thickness is greater than 1.2mm; diameter greater than 30mm, wall thickness less than 1.2mm.
Q:304L stainless steel pipe can withstand 0.1MPA?
Stainless steel pipe is a kind of hollow long strip round steel, mainly used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts. In addition, the bending and torsional strength of the same weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q:Where is the difference between seamles steel pipe and welded pipe?
Seamless steel tube: seamless steel pipe is made of steel ingot or solid tube blank through piercing, then made by hot rolling, cold rolling or cold casting. Specifications for seamless steel tubes are expressed in millimeters of outer diameter * wall thickness. Seamless steel pipe, hot-rolled and cold-rolled (DIAL) seamless steel pipe two categories.Hot rolled seamless steel tubes are divided into ordinary steel tubes, low and medium pressure boiler tubes, high pressure boiler tubes, alloy steel tubes, stainless steel pipes, oil cracking pipes, geological steel pipes and other steel pipes, etc..
Q:Where is the difference between seamless steel pipe or welded pipe?
Seamless steel tube is formed during rolling. Welded steel pipes need to be welded after coiling, and spiral welding and direct welding are generally used. Seamless performance is better, of course, the price is higher.
Q:Stainless steel seamless steel tube, ordinary seamless steel pipe, which is good?
The general stainless steel tube is wear-resistant, high temperature resistance, corrosion resistance. Plain carbon steel seamless tubes resist pressure better than stainless steel.
Q:What are the specifications of stainless steel decorative pipes?
For the steel to withstand the pressure to the hydraulic test to test its ability and quality, leakage, soaked or expansion for qualified does not occur at the prescribed pressure, some steel according to the requirement of standard or edge test, flaring test and flattening test.
Q:What's the difference between cold drawn steel tube and hot rolled steel tube?
Hot rolling is relative to cold rolling, cold rolling is performed under recrystallization temperature, while hot rolling is rolling above recrystallization temperature.Seamless steel pipe, hot-rolled and cold-rolled (DIAL) seamless steel pipe two categories.Hot rolled steel tubes are divided into ordinary steel tubes, low and medium pressure boiler tubes, high pressure boiler tubes, alloy steel pipes, stainless steel pipes, oil cracking pipes, geological steel pipes and other steel pipes, etc..
Q:How thick is the 3 stainless steel tube?
3 thicknesses representing 3 mm wall thickness
Q:316 stainless steel pipe wall mirror polishing, the smaller the roughness, the better.
Steel pipe is purchased separately, and then polished to find manufacturers alone, can meet the requirements,The cost is very high. To tell you the truth, I don't know.Specializing in sanitary stainless steel tube, stainless steel tube, precision sanitary stainless steel tube and stainless steel tube precision tube production and sales, the main material: stainless steel material: 0Cr18Ni9 (304 stainless steel tube) and 00Cr19Ni10 (304L stainless steel tube (316), stainless steel tube), 00Cr17Ni14Mo2 (GB 316L stainless steel tube), the products are widely used in instrumentation pharmaceutical machinery, food machinery, auto parts, pneumatic components, beverage, beer, drinking water, air purification and biological engineering and other fields.

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