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Product Description:

Steel Pipes manufacters and Exports huge range of ERW Galvanized Steel Tubes & Steel Pipes. For pipes or tubes size 8 inch (219 mm) OD and below, strip is fed into a set of forming rolls which consists of horizontal and vertical rollers so placed as to gradually from the flat strip in to a tube which is then allowed to pass the welding electrodes. The electrodes are copper disks connected to the secondary of a revolving transformer assembly. The copper disk electrodes make contact on each side of the seam and temperature is raised to the welding point. Outside flash is removed by a cutting tool as the tube leaves the electrodes, inside flash is removed either by an air hammer or by passing a mandnel through the welded tube after the tube has been cooled. This is termed as Electric Resistance Welded or ERW tube/pipe.

ERW pipes are used in Water Pipelines, Agriculture and Irrigation (Water Mains, Sewerage Systems, Industrial Water Lines, Plant Piping, Deep Tube-Wells & Casing Pipes). Other popular application area includes usage in gas pipe lines (pipe lines for natural gas, LPG and other non-toxic gases). The SW is meant for shallow water applications This could be in a canal, natural stream, culvert, or pipe.

Steel Specification:

Thickness: 0.2-3.0mm

Width: 600-1500mm

Coating Mass: Z08Z12Z18Z20Z22Z25Z27Z35


Tolerance for thickness,width,flatness and so on conform to the requirements of JIS G3302 or ASTM A653M/924M

Coil ID can be either 508mm or 610mm, maximum coil OD is 2000mm

The speicfication of ASTM Such as A653m,A924 M and so on have been updated to the latest revisions



Floor decks, ceilings, verandas, rolling doors, warehouse, partitions, sheds, gutters, wall, underground piping, sashes, beams, fences, scaffolding, indoor decorations, ducts, ventilating pipes, steel frames and cable trays.


Freezers, video recorder cases, motor cases, lighting fittings, water heaters, washing machines, refrigerators, stoves, air conditioners, dehumidifiers, fluorescent light housings, electrical heaters, toasters, microwave oven enclosures and switch boxes.


Containers, under body panels, bus & truck body panels, fuel tanks, noise screens, highway signs, air cleaners, conveyor systems and guard rails.


Barns, drying machines, animal houses, hoppers, irrigation systems, greenhouses, water tanks, sheds, silos, agricultural implements and feeders.


Vending machines, drums, cans, pails, sauna inner parts, chimney pipes, entertainment machines, solar collectors, office equipment, steel furniture, tool boxes, garages and waste bins.


Computer shells and communication instruments

Surface Treatment:

Chromating treatment or anti-finger print

Surface Finished:


Regular spangle is also called normal spangle which is naturally formed without any additional treatment during galvanizing.


The spangle is restrained and formed as mini spangle by reducing the lead content in the zinc liquid or by blowing the zinc powder from the equipment installed on the zinc pot.


The mini spangle is further skin-passed to produce the extra smooth surface.

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Q:What kind of stainless steel square tube is used in ordinary square tubes?
Stainless steel square tube is a kind of hollow long strip steel, because the section is square, so it is called square pipe. As the 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.
Q:What is drawing stainless steel, with ordinary light stainless steel what is the difference
Stainless steel in general Cr (chromium) content of at least 10.5%. Stainless steel also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements. The corrosion resistance of stainless steel decreases with the increase of carbon content. Therefore, the carbon content of most stainless steel is lower, the maximum is not more than 1.2%, and the Wc (carbon content) of some steel is even lower than 0.03% (such as 00Cr12). The main alloying element in stainless steel is Cr (chromium), which is corrosion resistant only when the Cr content reaches a certain value. Therefore, stainless steel in general Cr (chromium) content of at least 10.5%. Stainless steel also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements.
Q:What's the difference between cold rolled plate and stainless steel?
Cold rolled steel plates will soon rust (in the wind and rain). Rust must be painted outsideAs the price of chromium and nickel is very high, the price of stainless steel plate is several times that of ordinary cold-rolled steel sheet
Q:What's the difference between galvanized iron wire and stainless steel wire?
Differ,Galvanized iron wire, as its name suggests, is the surface of iron wire coated with zinc, in order to increase its corrosion resistance. But a long time will rust, good price.
Q:What paint does stainless steel spray?
Must use special paint for stainless steel processing: one is the first with the special stainless steel primer, primer and then in the other color surface spray paint, this would solve the problem of adhesion, disadvantage is sprayed with two coats of paint, and can spray solid paint;
Q:Do stainless steel springs need heat treatment?
Is the working environment of chemical machinery and electronics and many other industries in the requirements of corrosion resistance, high temperature, without a magnetic elastic element using the stainless steel spring can produce large elastic deformation under load, the kinetic energy is converted into mechanical work or deformation, and the deformation disappears after unloading and stainless steel spring back. The deformation can be converted into mechanical power or energy.
Q:How about stainless steel 2520 and 316?
Their nickel content is different. 2520 contains about 20 nickel, 316 contains about 13 nickel, and contains 2 molybdenum.
Q:Stainless steel thermos cup 304 and 201 material what is the difference?
304 stainless steel prices higher: in terms of price, 304 is far higher than the price of 201. Because 304 quality is better than 201 stainless steel, and 304 for imported stainless steel plate, 201 for domestic stainless steel plate, so 304 of the price is naturally higher.
Q:What are the standards for stainless steel angles?
Executive standard: standard stainless steel angle is divided into equilateral equilateral angle steel and stainless steel stainless steel angle two stainless steel angle steel, the equilateral stainless steel angle can be divided into equilateral equilateral thick and unequal thickness two.
Q:321 stainless steel plate and 310S stainless steel plate, which is resistant to high temperature?
310S high temperature resistance, 321 corrosion resistance is relatively good, in the case of high temperature, or 310S is suitable for the highest temperature can reach 1200 degrees, oxidation resistance, corrosion resistance, acid and alkali resistance, high temperature performance is better than 321 compared to too much

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