LARGE DIAMETER THICK WALL SEAMLESS STEEL PIPE

Large diameter thick wall seamless steel pipe is made of ingot or solid round steel through perforation to make wool tube, and then made by hot rolling. Large caliber thick wall seamless steel pipe is mainly based on the external caliber of its steel pipe, the general outer diameter of 325 mm or more are called large caliber steel pipe, the general wall thickness of more than 20 mm can be.

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Description

 

The Name of production factory: 


Shandong Panjin Steel Pipe Manufacturing Co., Ltd.

Hubei Xinyegang Steel.Co., Ltd.

Tianjin Pipe Corporation ( TPCO).

Hengyang Group

Professional and Strength

powerful

Deep in the industry for decades

Technical Experience

powerful

Rich technical experience

Brand Quality

powerful

Good processing equipment, high yield

Quality Service

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One stop service

PRODUCT INTRODUCTION

 

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    Sufficient Stock, Quality Assurance, Customizable

    Spot sales, ample supply, smooth surface, precise di-mensions, and improved processing performance.

  • High product quality with no defects, no obvious joints.

  • Customizable products, complete specifications,on-time delivery, and stable product quality.
  • Good pressure resistance and corrosion resistance, fa-cilitating transportation and installation.

 

 

Large Diameter Thick Wall Seamless Steel Pipe

Large diameter thick wall seamless steel pipe is made of ingot or solid round steel through perforation to make wool tube, and then made by hot rolling. According to incomplete statistics, there are about 240 domestic seamless pipe production enterprises, about 250 sets of large-caliber thick wall seamless steel pipe units, large-caliber thick wall seamless steel pipes are mainly based on the external caliber of its steel pipe, the general outer diameter of 325 mm or more are called large-caliber steel pipes, thick wall, the general wall thickness of 20 mm or more can be done. The following is the manufacturing process of the steel pipe: the raw material of the steel pipe is the steel pipe billet, and the tube billet is cut and processed by the cutting machine with a growth of about 1 meter, and is sent to the furnace by the conveyor belt for heating. The billet is heated in the furnace at a temperature of about 1200 ° C. The fuel is hydrogen or acetylene. Temperature control in the furnace is a key issue. After the round tube billet is released, it is perforated by a pressure punch. Generally, the most common piercing machine is the conical roll piercing machine, which has high production efficiency, good product quality, large perforating and expanding diameter, and can wear a variety of steel. After the perforation, the round tube blank is successively rolled by three roller skew, continuous rolling or extrusion. After extrusion, the tube should be removed for sizing. The sizing machine rotates into the steel embryo at high speed through the conical drill to punch holes and form the steel pipe. The inner diameter of the steel pipe is determined by the outer diameter length of the caliper drill bit. After the steel pipe is calibrated, it enters the cooling tower, cooled by water, and after the steel pipe is cooled, it will be straightened (in fact, many manufacturers no longer need to straighten the straightening machine, but directly reach the straightness of its steel pipe itself through the steel mill). After the steel pipe is straightened, it is sent to the metal inspection machine (or hydraulic test) for internal inspection. If there are cracks, bubbles and other problems inside the steel pipe, it will be detected. After the steel pipe quality inspection, it must pass strict manual selection (now there are laser detection and inspection).

Grade & Size: As per clients’ specifications and requirement.

 

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Production Line

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Warehouse

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Packaging

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Transportation

Key attributes:

Industry-specific attributes
Section Shape                                     Round                                                                                                                         
Surface Treatment Hot Rolled
Tolerance ±5%, ±1%
Oiled or Non-oiled Non-Oiled
Invoicing By Actual Weight
Other attributes
Place of Origin                                    Shandong, China  
Alloy Or Not Non-Alloy
Standard ASTM
Grade A106B/ST44/A1045/S45C/Q345
Delivery Time 8-14 days
Application 

Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe                                                                     

Thickness                                                       1-150mm  
Length 12M, 6m, 6.4M 
Certificate API, ISO9001
Processing Service Bending, Welding, Decoiling, Punching, Cutting                                                        
Standard ASTM JIS DIN GB ASME
Material

A106B/A53B/API5LB/DIN1629/ST44/ST/42/A1045/S45C/CK45/A210-C/ST52/Q345  

Surface                       Customers' Requirement
Type Seamless Round Steel Pipe
MOQ 25 Tons
Package Standard Seaworth Packing
Payment terms TT/LC
Color Black....as Customers' Requirement
Advantage                 Fast Delivery
Quality High Quality Inspection

Latest commonly used thick wall seamless steel pipe specification  :

Production Flow Chart :

PRODUCT FEATURES :

  • Ability to withstand in severe temperature

  • Robust product

  • Optimum performance
  • Highly durable
  • Accurate dimension

 

PRODUCT APPLICATIONS :

Our products are widely used in construction, light industry, chemical industry, aviation, agriculture, animal husbandry and fishery, commercial, automobile and shipbuilding industries.

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Cooperative partner


Shandong Guanzhou Co., Ltd.

Shandong Guanzhou Co., Ltd.

HBIS Group Co., Ltd.

HBIS Group Co., Ltd.

Tianjin Pipe Corporation ( TPCO).

Tianjin Pipe Corporation ( TPCO).

Linqing Hongji Group Co., Ltd.

Linqing Hongji Group Co., Ltd.

Hebei Zhaojian Metal Product Co., Ltd.

Hebei Zhaojian Metal Product Co., Ltd.

Shougang Group

Shougang Group

Tangshan Donggang Metal Sheet Manufacturing Co., Ltd.

Tangshan Donggang Metal Sheet Manufacturing Co., Ltd.

Shandong Panjin Steel Pipe Manufacturing Co., Ltd.

Shandong Panjin Steel Pipe Manufacturing Co., Ltd.

Hubei Xinyegang Steel.Co., Ltd.

Hubei Xinyegang Steel.Co., Ltd.

China National Building Material Group Co., Ltd. (CNBM)

China National Building Material Group Co., Ltd. (CNBM)

Linzhou Fengbao Pipe Industry Co., Ltd.

Linzhou Fengbao Pipe Industry Co., Ltd.

Boxing Galvanized Steel Sheet Factory.

Boxing Galvanized Steel Sheet Factory.

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