Carbon steel Seamless Pipe connection method

- Nov 24, 2020-

(1) The importance of the structure of heavy industrial structures, large-span structures, high-rise or super-high-rise civil construction structures or structures and other important structures, should consider the selection of good quality seamless steel tubes, the general industrial and civil architecture, according to the nature of the work can be selected by the ordinary quality of seamless steel tubes.
(2) The load situation directly under the structure of the dynamic load and the structure of the strong earthquake area, should choose the comprehensive performance of seamless steel tubes; Generally, the structure of static load can choose the lower price seamless steel tube. (3) connection method welding deformation, welding stress and other welding defects can be caused by weld process, and there is a risk of cracking or brittle fracture in the structure.

Therefore, the welding structure of the material requirements should be strict. (4) The structure of the temperature and environment, seamless steel tube at low temperature is easy to cold and brittle, so in the low-temperature conditions of the structure, especially the welding structure, should be selected with good anti-low temperature brittle performance of the calm steel.

In addition, the open-air structure of Taiyuan seamless steel tubes prone to aging, harmful medium effect of seamless steel tubes prone to corrosion, fatigue and fracture, also should be differentiated to choose different materials. (5) too thick seamless steel tubes, thin seamless steel tube roll rolling times, rolling compression ratio is large, the thickness of the seamless steel tube compression ratio is small, so the thickness of the precision steel pipe not only less strength, but also plastic, impact toughness and welding performance is poor. Therefore, the welded structure with large thickness should be made of seamless steel pipe with good material.

Product Description                                             


ASTM A106, ASTM A53, API 5L Gr.B, DIN17175,DIN1629


ASTM A106B, ASTM A53B, API 5L Gr.B,ST52, ST37,ST44


Outer diameter


Wall thickness



3m-12m, random or fixed, as the clients' requests


Hot Rolled


Control with in the standard, OD:+/-1%, WT:+/-5%



1.Short delivery time

2.Quality assurance

3.Competitive price

4.Free Sample

Products Show                                                     

ASTM A106 Gr.B Seamless Carbon Steel Pipe

     ASTM A106 Hot Rolled Seamless Pipes                             Hot Rolled Carbon Steel Seamless Pipes


Seamless Steel Pipe,as the name suggests,is a pipe without a seam or a weld-joint.

Seamless Steel Pipes is a tubular section or hollow cylinder,usually but not necessarily of

circular cross-section,used mainly to convey substances which can flow-liquids and gases(fluids),slurries,powders,powders and masses of small solids.


ASTM A106 Gr.B Seamless Carbon Steel Pipe

             API5L Hot Rolled Seamless Pipes                     JIS G3444 STKM12B Hot Rolled Seamless Pipes  


The production of our seamless steel pipes is tightly regulated and all of the pipes we produced

have been fuly tested to international standards to ensure we only supply the hightest products.


ASTM A106 Gr.B Seamless Carbon Steel Pipe

               Black Painting Hot Rolled Seamless Steel Pipes As Per ASTM A106/A53 Gr.B

Seamless Steel Pipes WITH black painting,beveled ends and plastic caps,mainly used in convey petroleum,gas and other liquid.The black painting can protect pipes out of rust and corrosion.

The beveled ends can connect the pipes with flange.



Packing & Delivery                                                

Bare Pipes in Container                           Cutted Pipes in Wooden Box              Black Painting Pipes

Packaging & Delivery
Packaging Details:
1. Small OD: In hexagonal bundle with steel strips 
2. Large OD: In bulk 
3. Wrapped in waterproof plastic woven bag 
4. Filled in wooden cases

5. As required
Delivery Detail:Shipped in 7-15 days after payment


Inspect Products                                                 

ASTM A106 Gr.B Seamless Carbon Steel Pipe

Application of Products                                       

ASTM A106 Gr.B Seamless Carbon Steel Pipe

Our Factory                                                         

ASTM A106 Gr.B Seamless Carbon Steel Pipe

        Heating Round Bar(Raw Material)                                    Punching Machine

ASTM A106 Gr.B Seamless Carbon Steel Pipe

      Hot Rolled Line                                                                    Finished Pipes


Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

CSPG  has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 

We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.


Now we have 2 Hot Rolled Produce Line and 10 Sets Cold Rolled Machines.The yield of our factory is about 30,000.00TONS(20,000.00 tons hot rolled pipes & 10,000.00 tons cold rolled pipes).


Our pipes had export to Ecuador,Argentina,Canada,Russia,Turkey,Thailand,Pakistan,Korea and India markets.

Our chairman Mr. Zhang Xiyin warmly welcome you to visit our company and hope to establish a long business relationship with you and your company.

Related Products