Leading Big O.D. Steel seamless pipes supplier in Asia

Big OD seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries.

Large-diameter seamless pipe thermal molding manufacturing process is mainly used for the following components:

automotive hoses: steering tube, brake pipe, air conditioning pipes, fuel pipes, cooling pipes, cooling hoses, heater hoses, air filter hoses, turbo system hose, engineering hydraulic hose; air hose and manifold; hard pipe or fittings and other automobile brake pump, radiator, oil cooler, cylinder; engineering hydraulic hose is mainly used for hydraulic equipment, engineering machinery, mining machinery, such as hydraulic pipe burst test; pressure equipment body, such as the need to detect the cylinder pressure, the burst test.

Device Features:
  1. with a gas-driven automatic booster pump, the output pressure can be easily adjustable, controllable;
  2. advanced technology, reasonable structure design. With small size, light weight, elegant appearance characteristics;
  3. all bearing parts are international famous brands of standard parts, without any solder connections for easy removal, high safety factor, long life, easy maintenance;
  4. driven by compressed air, full proof design;
  5. the start and stop the continuous and unrestricted, no adverse effects; pneumatic piston rings and other pneumatic components in working condition do not need to add oil, save operating costs, and prevent oil pollution of the environment;
  6. easily used in automatic control systems;
  7. in any predetermined pressure, no longer consumes energy and produces heat no heat, there will be no danger of sparks and flames;
  8. the pressure linear output, easy manual control.
Product Usage & Application :

Big OD seamless pipes dominates 65% of market share in Chinese boiler industry.

  1. Useful in Paper & Pulp Companies
  2. Useful in High Pressure Applications
  3. Useful in Oil and Gas Industry
  4. Useful in Chemical Refinery
  5. Useful in Pipeline
  6. Useful in High Temperature Application
  7. Useful in Water Pipe Line
  8. Useful in Nuclear Power Plants
  9. Useful in Food Processing and Dairy Industries
  10. Useful in Boiler & Heat Exchangers
Packing :

Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

Large diameter alloy steel pipes

The range of Large diameter alloy steel pipes pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.

Large diameter alloy steel pipes Mark Large diameter alloy steel pipes Mark
Large diameter alloy steel pipes Mark Large diameter alloy steel pipes Mark


Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
How to calculate a steel pipe and tube theoretic weight
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.
Condition on delivery:

It refers to the state of final plastic deformation or final heat treatment of the delivered product. The hot-rolled or cold drawn (rolled) state or manufacturing state generally delivered without heat treatment; the heat-treated state after heat treatment delivery, or the normalizing, tempering, solid solution, annealing according to the type of heat treatment status.

Delivery status Abbreviation Description

Cold-finished/hard
(cold-finished as-drawn)

BK No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft
(lightly cold-worked)
BKW After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed GBK After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized NBK The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.

Delivery according to actual weight or delivery according to theoretical weight

 


SUNNY STEEL

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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