Stainless Steel Seamless Pipe Manufacturing Process

- Oct 29, 2018-

Hot rolling (extrusion seamless steel pipe): round billet → heating → perforation → three-roll cross-rolling, continuous rolling or extrusion → pipe removal → sizing (or reducing diameter) → cooling → straightening → hydraulic test (or Detecting)→Marking→Warehousing

The raw material for rolling the seamless pipe is a round tube blank, and the round tube blank is cut into a blank having a length of about 1 m by a cutting machine, and sent to a furnace for heating via a conveyor belt. The billet is fed into a furnace and heated to a temperature of approximately 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a key issue. After the round billet is released, it is subjected to a through-hole punching machine. The more common perforating machine is a conical roller punching machine. This perforating machine has high production efficiency, good product quality, large diameter of perforation and can wear a variety of steel types. After perforation, the round billet is successively rolled, rolled or extruded by three rolls. After extrusion, the tube should be sizing. The sizing machine is rotated at a high speed by a conical drill bit into a steel core to form a steel pipe. The inner diameter of the steel pipe is determined by the outer diameter of the sizing machine drill bit. After the steel pipe has been sized, it enters the cooling tower and is cooled by water spray. After the steel pipe is cooled, it is straightened.

Product Description

If you have purchase order, pls let me know your required size:thickness, out diameter,length,and every size need how many tons or pieces,then I will supply FOB price for you, if you need CIF price, pls let me know destination port. 

Seamless and welded stainless steel pipe/tube

Stainless steel pipe is a kind of hollow long round/square steel, stainless steel pipe is divided into seamless steel pipe and welded steel pipe .mainly used in petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and other industrial pipeline and mechanical structure parts.In addition, in bending, torsional strength at the same time, relatively light weight, so also widely used in the manufacture of mechanical parts and engineering structures..It is also commonly used in the production of various conventional weapons, barrels, shells etc.

Product Description
API5L X42,X46,X52 steel pipe/ tube Carbon Steel seamless Pipe
We are a Chinese professional steel pipe manufacturer. We have more than ten years experience. We have our own factory, we can produce all kinds of steel pipes as your need. We have high quality and low price. We can assure you our quality and we have quality certificates. We welcome you send us inquiries, meanwhile we welcome you come to our factory to check the quality! Our after-sales service is also very good. If you have any questions, please feel free to contact us.  We look forward to your reply!

Large Diameter 3LPE Oil Pipeline Anti Corrosion Spiral Welded Steel Pipe (1)
Size Information
Seamless Steel Pipe/Tube
API 5L, ASTM A106, ASTM A53, ASTM A252,API 5CT, GB/T8162-2008,GB/T8163-2008,
GB/T18984-2003,GOST 8731-74,GOST 8732-78
Gr.B,X42-X52,S355 K2,S355JR,S355JOH,ST52,Gr.2, Gr.3, 16mn
OD: 32-610mm, Thick: 3-50mm
6m-12m or customed

Gas transportation ( oil, natrual gas)
Fluid ( water supply and drainage)
Structure (mechanical parts, such as petroleum drill pipe, auto transmission shaft, bicycle frame 
and construction of steel
Bare, Galvanized,Varnished, Zinc coating, Anti-corrosion, 3PE/PP/FBE. etc
Standard Sea Worthy Package or as per customer required
Delivery port
Tianjin, Shanghai, Qingdao or any other port in China.
Payment Terms
T/T, L/C, Western Union, Cash, etc

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Company Introduction

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

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

With the sense of responsibility, customer-centered, market-oriented, service-oriented, spot supply as the main body, good reputation, excellent business quality, integrity, conscientious work, perception of society and the spirit of Bianjin, we are committed to creating a win-win, easy and convenient large-scale integrated steel procurement for customers Platform.

The company upholds the enterprise tenet of integrity-based and customer-oriented, constantly strengthens internal management and builds an elite team, and will: all for users throughout the whole process of economic management, for this purpose, to provide customers with high-quality products and excellent services.

Q1: Are you a manufacturer or a trading company?
A: We are a manufacturer, providing OEM & ODM service.
Q2. Are your products conforming to our standards?
A: Our products can pass the testing as you require, e.g.: CE, RoHS, etc.
Q3. What’s the warranty for your products?
A: Normally it is 2 years.
Q4. What is the delivery date for a sample?
A: About the 3-4 working days after getting payment.
Q5. What about after-sale service?
A: 24hours online, we have professional after-sale department. Any problem, just contact us.