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Special Welded Tubes
We can produce precision and high-frequency welded steel tubes and pipes with all possible dimensions and shapes available.
Identification of fake spiral steel pipe
1. Inferior spiral pipe prone folding. Folding is formed on the surface of a variety of spiral steel fold, this defect is often throughout the product's portrait. The reason is due to the poor quality manufacturers folding pursuit of high efficiency, reduction is too large and resulting in the ears, which is generated when the next one rolling off stacked, folded products will crack when bent, the big decline in the strength of steel.
2. Spiral steel exterior is often inferior pock phenomenon. Pock is due to badly worn groove steel surface irregularities caused by uneven defects. Due to the poor quality of spiral pipe manufacturers to pursue profits, rolling groove most often exceeded.
3. Inferior spiral steel surface is easy to produce scarring. 4. Poor surface material is easy to crack because it is blank adobe, adobe many pores, the cooling process adobe due to thermal stress, cracks, cracking after rolling alone.
5. Inferior spiral pipe easily scratched because of poor quality spiral pipe manufacturers poorly equipped, easy to produce burrs, scratches steel surface. Deep scratches reduce the strength of steel.
6. Inferior spiral pipe without metallic luster, pale red color of iron or similar, there are two two reasons, it is adobe blank. Rolling temperature is not standard, they are visually steel temperature, so that the region can not be carried out according to the provisions of austenitic rolling steel performance naturally not reached.
7. Inferior spiral steel cross ribs thin and low, often sufficient dissatisfaction phenomenon, because manufacturers is to achieve large negative tolerance, finished the first few tracks reduction is too large, iron-type small, hole filling dissatisfaction.
8. Inferior spiral steel oval in cross section, in order to save material, pre-finished roll plunge two channels is too large, the strength of this steel is greatly decreased, and does not meet the standard dimensions of rebar.
9. Uniform quality steel components, high tonnage cold shear, cut the head face smooth and neat, but the poor quality timber material is poor, there are often cut off the head end surface of the meat of the phenomenon, namely uneven, and no metallic luster. And because fewer low-quality wood product manufacturers cut head, head and tail will appear big ears.
Carbon Steel pipe is superior in strength, workability, and adaptability. And it’s available in sizes, pressure classes, and chemical compositions to meet the most diverse project specifications.
Straight seam or spiral, forged fittings or fabricated, steel pipe can be designed and manufactured into virtually unlimited configurations to service the demands of nearly any system.
Square hollow section
Square steel tube comes in different sizes, specifications and wall thicknesses. Its uniformity makes it predictable to use and visually appealing. It has a high weight-to-strength ratio. It’s easy to bend, and because square steel tubing is inexpensive, it’s cost-effective- even for large projects.
Large diameter square tube defects
Hot dip galvanized square tube
Square Hollow Section, SHS, Square Box, Painted, Galvenised, ERW, Black, Mild Steel
Steel Grade: Q235, Q345, S235JR, S275JR, SS4007
Surface Finish: hot dipped galvanized, electro galvanized, black
Rectangular Hollow Sections
Rectangular steel tube comes in different sizes, specifications and wall thicknesses. Its uniformity makes it predictable to use and visually appealing. It has a high weight-to-strength ratio. It’s easy to bend, and because square steel tubing is inexpensive, it’s cost-effective- even for large projects.
Whether you’re looking for single cut-to-length pieces or truckload quantities, we’ll have what you need, or we’ll find it for you - we have access to a considerable variety of stock material, imported and domestic.
Regardless, all materials supplied by Imperial Pipe are guaranteed and certified to your specified standards
Mill Test Certificate: EN 10204/3.1B
Third party inspection: SGS, BV, Lloyds etc.
Related information of welded pipes:
Oval pipe, flat oval pipe and elliptic pipe
For the best quality Oval Tubes, we serve as one-stop destination in the international market. Our Steel Oval Tubes are endurable and long lasting. They are extensively used in various industrial and engineering applications. Apart from that, we are identified as one of the reliable Oval Steel Tubes Manufacturers and Suppliers in the country.
Welcome to Sunny Steel Enterprise Ltd.
Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.
You can get in touch by telephone, post, online or E-mail.
Please check the help section first to see if your question may be answered there.
Tel.: +8621 3378 0199
Web: webmaster@sunnysteel.com
Http://www.sunnysteel.com
