Stainless Duplex Seamless Steel Pipe High Nicke 31803

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

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Product Description:

1、Structure of Duplex steel A790 31803 seamless pipe Description:

    Stainless steel is a production which not easy rust,acid resistance and corrosion resistance,so it is widely used in light industry,heavy industry,daily necessities and the decoration industry.my company long-term supply stainless steel porducts including:stainless steel sheet,stainless steel coil and stainless steel tube.



2、Main Features of Duplex steel A790 31803 seamless pipe


• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

•Reasonable price 




3、Duplex steel A790 31803 seamless pipe Images:








4、Duplex steel A790 31803 seamless pipe Specification:


1. Process: Cold Rolling/ Cold Drawn
2. Size: 10mm-480mm
3. Standards: ASTM A312, ASTM A213,  ASTM A269, DIN 2462, JIS G3463
4. Schedules:1mm-30mm
5. Material: TP304, TP304L, TP316L, TP321, TP317L, TP310S, TP347H,  duplex  steel 

6.Surface Treatment: polishing, sand blasting,annealing and acid pickling
7.Package: export package  (weaving bag ,non-fabric ,wooden case)


processsizestandardscheculesmaterialsurfacepackage

cold drawn/

cold rolling 

10-480mm

A312

A213

A269

etc.

1-30mm

304/321/316

310/317/347

duplex steel

 

polishing

annealing 

and pickling

 

weaving bag in bundle

plywood case




5、FAQ of Duplex steel A790 31803 seamless pipe:


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:Water and electricity thin wall stainless steel tube 304 material delta 2 what does that mean?
High temperature resistance is also good, the general use of temperature limit is less than 650 degrees centigrade. 304 stainless steel has excellent stainless steel corrosion resistance and better intergranular corrosion resistance. Delta 2 indicates wall thickness of 2 mm
Q:How can stainless steel and copper pipe be welded?
Used to burn the brass pipe welding copper tube of copper which is often used for the installation and maintenance of brass stainless steel is rarely used because there are few people who will burn
Q:In stainless steel tubes, why are there some SS in the back and some standard L, such as 316L and 316SS? What's the difference?
316: corresponding to China's brand 0Cr17Ni12Mo2316L: corresponding to Chinese brand 00Cr17Ni14Mo2316L steel is a low C series of 316 steel grades. It has better corrosion resistance except for the same characteristics as 316 steel.
Q:Does stainless steel pipe belong to hardware?
It belongs to me. Stainless steel pipe belongs to the category of hardware in the steel, and stainless steel pendants, flat iron is more hardware. All belong to steel alloy.
Q:304 stainless steel, welded to seamless difference in what place?
The strength of the pipeline depends on the alloy composition, which contains the same alloy and the same heat treatment of stainless steel seamless pipe and welded stainless steel pipes essentially consistent strength.After the tensile test and three-dimensional vibration test, welded stainless steel pipes tearing almost all occurred in the region far away from the welding point or local heating. This is because there is little impurity in the weld and the nitrogen content is slightly higher, so the strength of the welded joint is better than that of other parts. However, ASME (American Society of Mechanical Engineers) that welded stainless steel pipes can withstand 85% of the allowable pressure, which is mainly due to improved welding equipment data collection prior to today.The provisions of ASME 100% completely under permit pressure through ultrasonic testing of welded stainless steel pipe. Similarly, Europe and Asia also stipulates that can ensure the quality of welding performance by eddy current testing of welded stainless steel tube for eddy current testing is subject to legal procedures and licensed institutions. TRENT's eddy current test was approved by the Swedish power division. ASME believes the current loss is relatively small, high-quality performance based on the seamed tube.
Q:304 stainless steel has several advantages, a few big advantages, the more concrete the better
304 stainless steel is a universal stainless steel material, antirust performance than the 200 series of stainless steel material stronger. High temperature resistance is also good, the general use of temperature limit is less than 650 degrees centigrade.
Q:Why pickling before cleaning stainless steel pipe oil?
Because of this, it can make a good foundation for the formation of passive film on the premise of the effective place, the magazine and the oxide, so as to make the passivation film more compact and improve the passivation effect!!
Q:How thick is the 3 stainless steel tube?
3 thicknesses representing 3 mm wall thickness
Q:What are the weld sleeves for stainless steel pipes?
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:316 stainless steel pipe wall mirror polishing, the smaller the roughness, the better.
From what you have described above, the difficulty lies in the roughness of the interior.You choose to finish the stainless steel tube, 2-3 finishing tubes, and then polished by solid polishing agent.

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