JINBAICHENG Metal Materials Co., Ltd

Factory Cheap Hot Square Steel Pipe - Spiral Seam Steel Pipe – JINBAICHENG

Short Description:


Product Detail

Product Tags

Related Video

Feedback (2)

With advanced technologies and facilities, strict quality control, reasonable price, superior service and close co-operation with customers, we are devoted to providing the best value for our customers for Stainless Steel Wire Mesh , Stainless Steel Square Bar , Steel Cable Tie , Top quality, timely company and Aggressive cost, all win us a superior fame in xxx field despite the international intense competition.
Factory Cheap Hot Square Steel Pipe - Spiral Seam Steel Pipe – JINBAICHENG Detail:

Production Process

(1) Raw materials are strip steel coils, welding wires, and fluxes. Strict physical and chemical inspections are required before investment.

(2) Butt joint of strip steel head and tail, adopt single wire or double wire submerged arc welding, after coiling into steel pipe, adopt automatic submerged arc welding to repair welding.

(3) Before forming, the strip undergoes leveling, edge trimming, edge planing, surface cleaning and conveying, and pre-bending treatment.

(4) The electric contact pressure gauge is used to control the pressure of the cylinders on both sides of the conveyor to ensure the smooth conveying of the strip.

(5) Adopt external control or internal control roll forming.

(6) The welding seam gap control device is used to ensure that the welding seam gap meets the welding requirements, and the pipe diameter, the amount of misalignment and the welding seam gap are all strictly controlled.

(7) Both internal welding and external welding adopt American Lincoln electric welding machine for single-wire or double-wire submerged arc welding, so as to obtain stable welding quality.

(8) The welded seams are all inspected by an online continuous ultrasonic automatic flaw instrument, which guarantees 100% non-destructive testing coverage of spiral welds. If there is a defect, it will automatically alarm and spray the mark, and the production workers can adjust the process parameters at any time according to this to eliminate the defect in time.

(9) Air plasma cutting machine is used to cut the steel pipe into individual pieces.

(10) After cutting into single steel pipes, each batch of steel pipes must undergo a strict first inspection system to check the mechanical properties, chemical composition, fusion status of the welds, the surface quality of the steel pipes and pass non-destructive inspections to ensure that the pipe-making process is qualified. After that, it can be officially put into production.

(11) The parts with continuous sonic flaw detection marks on the weld are re-examined by manual ultrasonic and X-ray. If there is a defect, after repairing, it will go through non-destructive inspection again until it is confirmed that the defect has been eliminated.

(12) The pipes where the strip steel butt welding seams and the D-shaped joints intersecting the spiral welding seams are all inspected by X-ray television or filming.

(13) Each steel pipe undergoes hydrostatic pressure test, and the pressure adopts radial seal. The test pressure and time are strictly controlled by the steel pipe hydraulic microcomputer detection device. The test parameters are automatically printed and recorded.

(14) The pipe end is mechanically processed, so that the verticality of the end face, the bevel angle and the obtuse edge can be accurately controlled.

Product Display

Spiral tube1
Spiral tube
Spiral tube2

Product Usage

Spiral steel pipes are mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. It is one of the twenty key products developed in my country.
Used for liquid transportation: water supply and drainage. Used for gas transportation: coal gas, steam, liquefied petroleum gas. For structural purposes: as piling pipes and bridges; pipes for docks, roads, and building structures.

Material

Q235A, Q235B, 10#, 20#, Q345(16Mn), L245(B), L290(X42), L320(X46), L360(X52), L390(X56), L415(X60), L450(X65), L485(X70), L555(X80)

L290NB/MB(X42N/M), L360NB/MB(X52N/M), L390NB/MB(X56N/M), L415NB/MB(X60N/M), L450MB(X65), L485MB(X70), L555MB(X80)。


Product detail pictures:

Factory Cheap Hot Square Steel Pipe - Spiral Seam Steel Pipe – JINBAICHENG detail pictures

Factory Cheap Hot Square Steel Pipe - Spiral Seam Steel Pipe – JINBAICHENG detail pictures

Factory Cheap Hot Square Steel Pipe - Spiral Seam Steel Pipe – JINBAICHENG detail pictures


Related Product Guide:

We constantly believe that one's character decides products' high quality, the details decides products' high-quality ,together with the REALISTIC,EFFICIENT AND INNOVATIVE crew spirit for Factory Cheap Hot Square Steel Pipe - Spiral Seam Steel Pipe – JINBAICHENG , The product will supply to all over the world, such as: Bhutan, Philadelphia, Singapore, Our business activities and processes are engineered to make sure our customers have access to widest range of products with the shortest supply time lines. This achievement is made possible by our highly skilled and experienced team. We look for people who want to grow with us around the globe and stand out from the crowd. We have people who embrace tomorrow, have vision, love stretching their minds and going far beyond what they thought was achievable.
  • This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.
    5 Stars By Moira from Tajikistan - 2017.06.25 12:48
    The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
    5 Stars By Lillian from Kuwait - 2017.03.08 14:45
    Write your message here and send it to us