TP321 Stainless Steel Tube

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Quick Details

  • Standard:JIS, AISI, ASTM, GB, DIN, EN

  • Place of Origin:Tianjin, China (Mainland)

  • Model Number:321,321L

  • Type:Welded

  • Steel Grade:300 Series

  • Application:decorating,chemical plants,construction industry

  • Certification:SGS

  • Thickness:0.08-12.8mm

  • Outer Diameter:0.25-50.8mm

  • name:tp321 stainless steel tube

  • MOQ:25 kgs

  • material:321,321L

  • O.D.:0.25-50.8mm

  • thickness:0.08-12.8mm

  • Certificate:BV

  • privilege:Sample cost free for VIP customer

  • Application:decorating,chemical plants,construction industry

  • Standard:ASTM,EN,JIS

  • Experience:20 years

Packaging & Delivery

Packaging Details:seaworthy wooden case packing or for customer's request
Delivery Detail:3-10 days

Specifications

tp321 stainless steel tube
1.WT:0.08-12.8mm
2.OD:0.25-50.8mm
3.Sample cost free for VIP customers
4.MOQ:25kgs

321 stainless steel tube

1. WT: 0.08-12.8mm
2. OD: 0.25-50.8mm
3. MOQ: 25 kgs

4. Sample cost free for VIP customer  


Steel grade : 301(1Cr17Ni17),304 Moderate Frequency (0Cr18Ni9),304 AOD (0Cr18Ni9),304L(00Cr19Ni10) ,321 M oderate Frequ ency (1Cr18Ni9Ti),321 AOD (1Cr18Ni9Ti),316(0Cr17Ni12Mo2),316L(00Cr17Ni14Mo2),310S(0Cr25Ni20) ,317L(00Cr19Ni13Mo3)


Specification : GB/T14975-2002,GB/T14976-2002,GB13296-91,GB9948-88  ASTM/ASME A213/SA213,ASTM/ASME A312/SA312,ASTM/ASME A269/SA269,DIN 17458-85,DIN 17456-85,JIS G 3459,JIS G 3463,JIS G 3448 JIS G 3446.

 

 

FAQ of Stainless 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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TP321 Stainless Steel Tube

 

 

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Q:The difference between carbon and welded steel tubes
Seamless steel pipe is made of Steel No. 10-20. It is of high quality carbon structural steelWelded steel pipe is usually welded by Q235 steel plate
Q:How can the immersed pipe pile put steel cage into the steel pipe? Which expert to answer?
Cast-in-place pile for pile machine in place, hammer (vibration), on the edge of immersed tube material, hammer (vibration) side of extubation, and continue pouring concrete, steel cage, continue pouring concrete and extubation to pile.
Q:What's the difference between a rectangular tube and a rectangular steel tube?
The classification of rectangular tube: steel pipe seamless steel pipe and welded steel pipe (tube) hot-rolled seamless tube, seamless tube, seamless tube, welded tube extrusion. The welded square pipe is divided into two parts:(a) according to the process of arc welding - resistance welding tube, square tube (high frequency and low frequency), welding square tube, welding square tube furnace (b) according to the weld - welded square tube, spiral welded pipe.
Q:How to perform nondestructive inspection of steel tubes
Radiographic inspection (RT)One of the earliest nondestructive testing methods is widely used in the inspection of internal defects of metals and non-metallic materials and products, with a history of at least 50 years. It has incomparable unique advantages, that is to test the correctness, reliability and intuition of the defects, and the ray film can be used for the analysis of defects and as a quality certificate archive. But this method also has the disadvantages of more complicated equipment and higher cost, and should pay attention to the protection of radiation.
Q:Welded and seamless steel pipe how to distinguish?
Different processing technology:Seamless tubes are made of quality carbon steel or alloy steel. Processing technology of seamless pipe hot rolling and cold drawing is divided into two ways, and the tube is generally based on welded.
Q:Seamed steel pipe seamless steel pipe, carbon steel pipe, galvanized pipe, four how to distinguish between
Seamless steel tube processing technology:1.1 、 hot rolled seamless tubes are usually produced on automatic rolling mills. After checking and cleaning the surface defects, the solid tube is cut into the required length, centring on the end face of the tube blank, then sent to the heating furnace and punched on the piercer. At the same time, the hole rotates and advances continuously. Under the action of the roller and the plug, the inner cavity of the pipe blank is gradually formed, and the cavity is called the capillary. Sent to the automatic tube rolling mill on rolling. Finally, the thickness of the whole machine is the same, and the diameter of the sizing machine is determined to meet the specifications. It is an advanced method to produce seamless steel tube by continuous rolling mill.1.2, in order to obtain smaller size and better quality of seamless tube, cold rolling, cold drawing method must be used or combined. Cold rolling is usually carried out on a two roller mill, where the steel tube is rolled in the annular groove made of variable cross section, round hole groove and stationary conical head. Cold drawing is usually performed in single chain or double chain cold drawn machines from 0.5 to 100T.1.3, the extrusion method will soon heat the tube blank in the closed extrusion cylinder, the perforation bar and extrusion rod movement, so that extrusion parts from the smaller hole extrusion. This method can produce smaller diameter steel pipe.Seamless steel pipe use: mainly used to transport fluid pipeline or structural parts.The main use of steel pipe joints (steel) two welded together, so the price is cheap, widely used.
Q:How to make the magnetic steel, can be like a magnet?
Of course, not all materials can be magnetized, austenitic stainless steel will not do.
Q:Theoretical weight of 25*25*1.5 square steel tubes
Theoretical weight can be directly from the steel tube under the table look up, you can also press type calculation:Weight per meter =4x, wall thickness x (side length - wall thickness) x0.00785. The length of the square tube and the wall thickness are in millimeters, and the weight of each square meter is in kilograms.
Q:Where is a steel pipe casing usually used?
The casing, usually used in the basement construction, to protect the pipeline or convenient pipeline installation hoops.
Q:45 and 316 which steel tubes are of high hardness?
This depends on the heat treatment state, if 45 steel, 314 stainless steel without heat treatment, 316 stainless steel hardness, if the heat treatment, that is 45 steel hardness.

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