Stainless Steel Rectangular Pipe ASTM A554 304 316 201 Made in China

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30 m.t.
Supply Capability:
12000 m.t./month

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1Structure of Seamless Pipe ASTM A106/53: 

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. 


Decorations, constructions Oil and chemical industry Food industry and pharmaceutical industry Rustless, stainless, good corrosion resistance, anti-wearing, good Water transportation systems


2‍‍Main Features of the Seamless Pipe ASTM A106/53:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price  


3Seamless Pipe ASTM A106/53 Specification



ASTM A106-2006, ASTM A53-2007


10#-45#, 16Mn

10#, 20#, 45#, 16Mn


8 - 33 mm

Section Shape


Outer Diameter

133 - 219 mm

Place of Origin

Shandong, China (Mainland)

Secondary Or Not



Hydraulic Pipe


Cold Drawn



‍Surface Treatment

factory state or painted black

‍Special Pipe

API Pipe

Alloy Or Not




Outer Diameter



20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B



 1.ASTM A554, Q/GBS1-2005, customers' requests available 



4. 25*13mm,36*23mm,40*20mm,50*20mm,60*15mm,75*45mm

5.Cold drawn, Annealed with nitrogen protection, Ultrasonic welding,


4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT


5FAQ of Seamless Pipe ASTM A106/53:  

①How 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.

②How 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.

③Why 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.


6‍‍Seamless Pipe ASTM A106/53 Images ‍‍


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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: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:How can I clean the stainless steel tube?
1, cleaning stainless steel gently method is simply to use hot water and clean soft cloth to wipe the surface, and then use dry metal with other soft cloth, to prevent water stains thoroughly.2, if ordinary water leaves some dirt or grease, you can add a mild detergent water.
Q:Why can stainless steel pipes be welded by argon arc welding?
Argon arc welding arc welding, convenient operation and observation; electrode loss is small, easy to maintain the arc length, welding flux free, coating layer, so it is easy to realize mechanization and automation; argon arc welding welding can almost all metals, especially some refractory metal, oxidizable metals, such as magnesium, titanium, molybdenum zirconium and aluminum and its alloys; by the welding location restrictions, can be used for all position welding.
Q:What does "stainless steel pipe" DN mean?
In order to connect the pipe and pipe fittings in a unified way, nominal diameter (also called nominal diameter, nominal diameter) is adopted. For example, welded steel pipes can be divided into thin wall steel pipes, ordinary steel pipes and thickened steel pipes according to their thickness. Its nominal diameter is neither external diameter nor internal diameter, but a nominal size similar to the diameter of the ordinary steel pipe. Each nominal diameter corresponds to an outer diameter, and the inner diameter varies with the thickness. Nominal diameter can be expressed in metric mm, also available in English in. With nominal diameter pipeline accessories, meaning with tube.
Q:304 stainless steel will rust it?
First of all, why stainless steel is not easy to rust, and then why stainless steel will rust?Stainless steel is not easy to rust and has a lot to do with the composition of stainless steel. In addition to iron, stainless steel contains chromium, nickel, aluminum, silicon and so on.
Q:Disadvantages of stainless steel tubes
Galvanized iron pipe is the most widely used material at present. Because of the corrosion of galvanized iron pipe, the content of heavy metals in water is too high, which affects the health of human body.
Q:What's the difference between the stainless steel pipe welded pipe and seamless pipe?
Strength: the strength of the pipeline in the composition of the alloy and alloy containing the same and the same heat treatment of seamless tube and seamed tube essentially consistent strength. After the tensile test and three-dimensional vibration test, tube tearing almost all occurred in the welding point or away from the heated area where. 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, the ASME Boiler and Pressure Vessel Association believes that the seamed tube 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 license by ultrasonic testing pressure tube. Similarly, Europe and Asia also stipulates that can ensure the quality of welding performance by eddy current test tube, the 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: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.
Q:Is food grade stainless steel GB9684 304?
You can't say that.GB9684 is the implementation of standards, 304 is a material of stainless steel, stainless steel material is very much, such as 304321316347310s, 904L and so on, as long as the material of stainless steel in accordance with GB9684 standards of production and processing, can be used as a food grade stainless steel, it should be said that in accordance with the implementation of the standard GB9684 production and processing of food grade stainless steel is 304.

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