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Section shape: round

Thickness: 4mm-16mm

Outer diameter: 219mm-2020mm


ASTM A252, BS1387,GB3091,ASTMA53, B36.10, BS EN1029, API 5L, GB/T9711 etc


Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc.


plain ends pipe,cutting threading, beveled, 3PE steel pipe, black and color painting, anti-rusting oilsteel pipe, varnish paintingsteel pipe, zinc-coating steel pipe, steel stamp, drilling, diameter reducing pipe etc.

Surface Treatment

1. 3PE

2. PVC,black and color painting

3. Transparent oil,anti-rust oil

4. According to clients requirement


1. Bundle

2. Bulk

3. Plastic bags ,etc

Min order

10 tons, more quantity price will be lower

Payment terms

T/T, L/C at sight, western union etc.

Deliver time

Within 7-30 days after deposit, ASAP


Construction,machine structure pipe, Agriculture equipment pipe, Water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc


We can do special orders as customer’s requests.

We also can provide all kinds of steel hollow pipes.

All the production process are made under the ISO9001:2008 strictly

Business type

Manufacture and exporter

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Q:Is the same specification seamless steel pipe more expensive than welded pipe?
Specifications of the same kind of seamless steel pipe than welded pipe prices are generally about 30% high, large diameter difference is greater.
Q:Seamed steel pipe seamless steel pipe, carbon steel pipe, galvanized pipe, four how to distinguish between
Seamless steel tube processing technology:1.1 、 hot rolled seamless tubes are usually produced on automatic rolling mills. After checking and cleaning the surface defects, the solid tube is cut into the required length, centring on the end face of the tube blank, then sent to the heating furnace and punched on the piercer. At the same time, the hole rotates and advances continuously. Under the action of the roller and the plug, the inner cavity of the pipe blank is gradually formed, and the cavity is called the capillary. Sent to the automatic tube rolling mill on rolling. Finally, the thickness of the whole machine is the same, and the diameter of the sizing machine is determined to meet the specifications. It is an advanced method to produce seamless steel tube by continuous rolling mill.1.2, in order to obtain smaller size and better quality of seamless tube, cold rolling, cold drawing method must be used or combined. Cold rolling is usually carried out on a two roller mill, where the steel tube is rolled in the annular groove made of variable cross section, round hole groove and stationary conical head. Cold drawing is usually performed in single chain or double chain cold drawn machines from 0.5 to 100T.1.3, the extrusion method will soon heat the tube blank in the closed extrusion cylinder, the perforation bar and extrusion rod movement, so that extrusion parts from the smaller hole extrusion. This method can produce smaller diameter steel pipe.Seamless steel pipe use: mainly used to transport fluid pipeline or structural parts.The main use of steel pipe joints (steel) two welded together, so the price is cheap, widely used.
Q:Outside diameter 60, thickness 3.5 seamless steel tube, how many kilograms per meter?
Other commonly used theoretical weight formulas per metre:Thread steel (Kg/m):W=0.00617 * D * D, D - sectional diameter (mm)Fang Gang (Kg/m):W=0.00785 * a * a, a - edge width (mm)Flat steel (kg/m):W= 0.00785 * b * D, B -- edge width (mm) d - thickness (mm)Round steel rod (kg/m),:W= 0.006165 * D * D, D - diameter (mm)
Q:SC15 what does galvanized steel pipe look like?
Zinc plating: galvanized steel pipe hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, with uniform coating, adhesion, long service life and so on. The cost of galvanizing is low, the surface is not very smooth, and the corrosion resistance of itself is much better than that of galvanized pipe. Refer to
Q:What does "buried steel pipe" 6*2SC100 mean?
Welded steel pipe refers to the use of steel or steel plate bending deformation into a round, square and other shapes after welding into the surface of the joint of the steel pipe. The blank used in welded steel pipe is steel or strip steel.
Q:What does carbon seamless steel pipe mean? What is the difference between a seamless 20# and an ordinary one? What is it used in detail?
In general, steel is divided into two groups according to their chemical composition: carbon steel and alloy steel;(1): carbon steel low carbon steel (C = 0.25%); carbon steel (0.25% < C < 0.60%); high carbon steel (C = 0.60%)(2): alloy steel, low alloy steel (alloy is less than or equal to 5%); in steel (5% < < 10% alloy; high alloy steel (alloy) = 10%)Carbon seamless steel tubes are mostly pipes for mechanical engineering structures and pipes for conveying fluids.
Q:What is DN50 for welded pipe?
Commonly used in the market DN50 seamless steel pipe, the outer diameter has two specifications: A, 57mm, B, 60mm, if no special instructions, commonly used is 57mm. The outer diameter of the welded pipe is only 60mm this specification.
Q:Are metal spiral tubes the same as metal bellows?
The corrugated pipe is extruded by the extruder, the winding pipe is wound in a circle, and the prestressed metal corrugated pipe is a reserved channel.
Q:Is hot dipped plastic pipe steel?
Hot dip pipe used in fluidized bed impregnation process, one-time into new anti-corrosion steel production process is the original film, plastic pipe or electrostatic nozzle replace (the products by physical treatment process)
Q:Where is the difference between seamless steel pipe and welded pipe?
The steel tube is a hollow steel strip, used as pipe conveying fluid, such as oil, gas, water, gas, steam, in addition, the bending and torsional strength of the same, the weight is light, so it is widely used in the manufacture of machinery parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.Pipe classification: steel pipe seamless steel pipe and welded steel pipe (tube) two categories. It can be divided into round tube and special-shaped tube according to the sectional shape. The round steel tube is widely used, but there are some special-shaped steel tubes such as square, rectangle, semicircle, hexagon, equilateral triangle and octagon.

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