Stainless Steel Seamles Pipe 304 ASTM A312

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1、Structure of Stainless Steel Seamles Pipe 304 ASTM A312 Description:

Stainless seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.



2、Main Features of the Stainless Steel Seamles Pipe 304 ASTM A312:


• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

•Reasonable price 



3、Stainless Steel Seamles Pipe 304 ASTM A312 Images:







4、Stainless Steel Seamles Pipe 304 ASTM A312 Specification: 


Experienced

Lists of Standard

 

Applicable Code No.

 

Steel Grade

 

 

ASTM

 

 

A213, A269, A312, 

A789, A790, B677, A268

TP304/L/H, TP310/S/H, TP316/L/H/Ti, TP317/L, TP321/H, TP347/H, S31803, S32205, S32750,

S32304, S31500, TP904L, TP410, TP430, TP405, TP409/409L

 

 

ASME

 

SA213, SA312, SA789,

SA790, SB677

TP304/L/H, TP310/S/H, TP316/L/H/Ti, TP317/L, TP321/H, TP347/H, S31803, S32205, S32750,

S32304, S31500, TP904L

 

 

JIS

 

 

JIS G3459, JIS G3463

SUS 304TB, SUS304HTB, SUS304LTB, SUS310TB, SUS310STB, SUS316TB, SUS316LTB, SUS316TiTB, SUS317TB, SUS317LTB, SUS321TB, SUS321HTB,

SUS347TB, SUS347HTB

 

EN & DIN

EN 10216-5,

DIN 17456, DIN 17458

1.4301, 1.4307, 1.4541, 1.4878, 1.4401, 1.4404,1.4571,1.4550,1.4438, 1.4436,1.4435, 1.4462, 1.4539, 1.4912, 1.4362

 

 GB&GB/T

 G B13296

G B/ T14976

0Cr18Ni9,00Cr19Ni10,0Cr18Ni10Ti,0Cr18Ni11Nb,0Cr17Ni12Mo2,000Cr17Ni14Mo2,0Cr18



Type

 

O.D. 

 

W.T. 

 

Length

Bending

Radius

Application

Specification

 

S.S Seamless

Tubing

 

 

3.17mm –

101.6mm

 

0.5mm –

25.4mm

 

Max. 22m

 

 

/

A213, A269, A511, A789; SA213, SA789, B677, SB677; JIS G3463; EN 10216-5

 

S.S. Seamless

Pipe

 

10.29mm –

355.70mm

 

0.89mm –

50.0mm

 

Max. 18m

 

 

/

A312, A790, SA312, SA790, 

JIS G3459, EN  10216-5

 

 

S.S. Seamless

U-tube

 

 

15.88mm –

76.1mm

 

 

0.89mm –

7.14mm

 

 

Max. 25m

 

From 

1.5 x OD 

  To  1000mm

A213, A789, SA213, SA789, B677, SB677, JIS G3463, EN

10216-5, SA688

Testing:

   (1)  Hydro-Static Test  

      (2)  Non-Destructive Test

      (3) Ultrasonic Test       

      (4)Eddy-Current Test



5、FAQ of Stainless Steel Seamles Pipe 304 ASTM A312:

 

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:What are the differences in the properties of hot-rolled and cold-rolled stainless steel tubes?
Stainless steel tube with hot and cold points, hot rolling is made by stainless steel tube billet heated to red state, through processing a mold, which is cold-rolled stainless steel pipe billet collocation through different mould at room temperature, finally by drawing rolling method, stainless steel tube working together the size of the need to.
Q:Stainless steel pipes can not be less than the amount of chromium
304 stainless steel tube as 304 steel pipe, in the dry clean atmosphere, have absolutely excellent anti-corrosion ability, but it will be moved to the beach area, with large amounts of sea salt fog, will rust quickly; and the good performance of 316 steel pipe. Therefore, it is not any kind of stainless steel, capable of corrosion and rust in any environment. Stainless steel is a very thin layer formed on the surface and the stability of the fine solid chromium rich oxide film (protective film), to prevent the infiltration of oxygen atoms, to oxidation, and the ability to obtain anti-corrosion. Once there are some reasons, this film was constantly destroyed, air or liquid oxygen atoms will continue to infiltrate or metal atoms of iron to keep out from the loose formation of iron oxide, the metal surface will be continuously corroded. Many of the surface damage form, more common in daily life are as follows: 1. stainless steel surface deposited dust or heterogeneous metal particles containing other metal elements of the attachment, in the humid air, condensed water and adhesion between the stainless steel, the two together into a micro battery, cause the electrochemical reaction, the film has been destroyed, called electrochemical corrosion. 2. stainless steel surface adhesion of organic juice (such as vegetables, soup, sputum), oxygen in the water under the circumstances, a long time, organic acid, organic acid on the surface of metal corrosion. 3., stainless steel surface adhesion contains acid, alkali and salt substances (such as decoration wall caustic soda, lime water splash), causing local corrosion. 4., in polluted air (such as containing large amounts of sulfide, carbon dioxide and nitrogen oxides in the atmosphere), in case of condensation water, the formation of sulfuric acid, nitric acid, acetic acid liquid point, causing chemical corrosion.
Q:How much is one ton of stainless steel pipe?
If you want to use industrial, production, 316L is the best, but the price is expensive, but the best rust resistance, high stability.
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:Comparison of ring type connection and argon arc welding of stainless steel pipe
1. The pipe is embedded in the pipe, and the ring pressure connection strength is high;2. After the ring is pressed, the inserted part of the pipe and the pipe is a closed ring, which can not generate spiral loosening and strong vibration resistance;3. The sealing material fills the entire seal cavity tightly and the seal is very reliable;4. Easy to install and quick.5. Shrinkage and anti drawing test of ring seal joint
Q:How can the stainless steel tube eliminate stress?
After heating 500 degrees, placed at room temperature or placed at room temperature for more than 2 years
Q:What's the difference between stainless steel 304 and stainless steel 202?
Different chemical composition. 304 of the nickel is much higher than 202.
Q:What wire is used for welding of 316 stainless steel line?
Quality inspection of welding groove preparation, according to requirements of groove size, accuracy and surface quality stipulated in construction instruction and welding process instruction, groove quality including flatness, perpendicularity and cleanness.1, check the groove processing size (height, angle, edge and blunt edge, etc.) and accuracy isDoes it meet the relevant technical standards?.2, check the groove surface roughness and surface defects (cutting gap, crack,Layer and slag) if beyond the scope of the standard should be allowed to defect, repair treatment, such as surface roughness does not reach the standard, can use abrasive grinding.3. Check the surface cleaning quality of the groove. At least 200mm of the groove face and its sidesShould be clean within the scope, without burr, slag, rust, oil, film and paint and other harmful foreign bodies.4 、 nondestructive inspection of groove surface. For welding process documentation, specify the slopeMaterials such as CY-M steel, Fe-CY-N, high temperature steel and alloy steel shall be examined on the surface for nondestructive testing (such as coloring, etc.), and the defects such as cracks shall be removed.
Q:What are the specifications of stainless steel decorative pipes?
The steel pipe seamless steel pipe and welded steel pipe (seamed pipe) two categories. It can be divided into round tube and special-shaped tube according to the sectional shape. The round steel tube is widely used, but there are some special-shaped steel tubes such as square, rectangle, semicircle, hexagon, equilateral triangle and octagon.
Q:What is the welding of stainless steel?
Sheet argon arc welding greater than 10mm by hand welding or gas shielded welding

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