Many varieties 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:

Stainless Steel Seamles Pipe 304 ASTM A312

Stainless Steel Seamles Pipe 304 ASTM A312

Stainless Steel Seamles Pipe 304 ASTM A312

4、Stainless Steel Seamles Pipe 304 ASTM A312 Specification: 


Lists of Standard


Applicable Code No.


Steel Grade






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





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 G3459, JIS G3463





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



 G B13296

G B/ T14976














S.S Seamless




3.17mm –



0.5mm –



Max. 22m




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


S.S. Seamless



10.29mm –



0.89mm –



Max. 18m




A312, A790, SA312, SA790, 

JIS G3459, EN  10216-5



S.S. Seamless




15.88mm –




0.89mm –




Max. 25m



1.5 x OD 

  To  1000mm

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

10216-5, SA688


   (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:SC15 what does galvanized steel pipe look like?
Zinc plating: galvanized steel pipe hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, with uniform coating, adhesion, long service life and so on. The cost of galvanizing is low, the surface is not very smooth, and the corrosion resistance of itself is much better than that of galvanized pipe. Refer to
Q:What does "spiral welded steel pipe" DN325*10 mean?
Labeling is wrong: it should be said for 325*10, the diameter of pipe wall thickness of 10, 325;For example, the nominal diameter shall be: DN300.
Q:What is ND steel pipe?
ND steel 09CrCuSb steel is currently the most ideal "resistance to sulfuric acid dew point corrosion in steel (ND steel, ND steel, 09CrCuSb steel, 09CrCuSb steel), ND steel is widely used in the manufacture of economizer, served in the high sulfur content in flue gas of air preheater, evaporator and heat exchanger equipment for resist sulfur smoke gas dew point corrosion.
Q:DN80 seamless steel tube, what is the standard thickness?
Commonly used DN80 seamless steel pipe caliber should be 89mm*4mm.
Q:Difference between seamless steel pipe and welded pipe
Seamless steel tubes are made of high quality carbon or alloy steel. They are hot-rolled and cold-rolled (drawn).The welded pipe is rolled into the steel tubular to sew or spiral seam welded in the manufacturing method, and is divided into low pressure fluid delivery with welded steel pipe, spiral welded steel pipe, welded steel pipe, welded pipe roll etc..
Q:Is hot dipped plastic pipe steel?
Hot dip pipe used in fluidized bed impregnation process, one-time into new anti-corrosion steel production process is the original film, plastic pipe or electrostatic nozzle replace (the products by physical treatment process)
Q:What are the main types of steel pipe ah? How to judge which kind of steel pipe performance is better?
Welded steel pipe for different welding process and divided into the furnace pipe welding (ERW) pipe and automatic arc welding, because of the different forms of welding seam welded pipe and spiral welded pipe is divided into two kinds, end its shape is divided into circular welded and shaped (square, flat) pipe.The welded pipe is rolled into the steel tubular to sew or spiral seam welded in the manufacturing method, and is divided into low pressure fluid delivery with welded steel pipe, spiral welded steel pipe, welded steel pipe, welded pipe roll etc.. Seamless steel pipe can be used in various industries, such as liquid, pneumatic, pipeline and gas pipeline. Welding pipes can be used in water pipelines, gas pipelines, heating pipes, electrical appliances, pipelines and so on.Press materialSteel pipe according to the pipe material (ie steel) can be divided into: carbon tube and alloy tube, stainless steel tube.Carbon tube can be divided into ordinary carbon steel tube and high quality carbon structure tube.The alloy tube can be divided into: low alloy pipe, alloy pipe structure, high alloy tube, high strength tube. Bearing tube, heat resistant acid resistant stainless pipe, precision alloy (such as cutting alloy) pipe, high temperature alloy tube, etc..
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 the difference between seamless steel pipe and welded pipe
The steel tube is a hollow steel strip, used as pipe conveying fluid, such as oil, gas, water, gas, steam, in addition, the bending and torsional strength of the same, the weight is light, so it is widely used in the manufacture of machinery parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q:Seamless steel pipe 8162 and 8163 what is the difference?
8163 GB is fluid delivery tube, need to use eddy current detection, fluid transport, liquid, gas, solid, such as natural gas, water, gas, coal and stone, 8162 and 8163 of the popular point that is 8163 more than 8162 senior, 8163 inspection, 8162 inspection. I hope you understand!

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