1. High strength and corrosion resistance, with sturdy structure and strong compression resistance
2. Strong polishing performance
3. Wide adaptability, widely used in fields such as construction, machinery, automobiles, ships, etc
Stainless steel square tube is a hollow strip of steel, because the cross-section is square so called square tube. A large number of pipelines used to transport fluids, such as oil, natural gas, water, gas, steam, etc., in addition, in the bending, torsional strength at the same time, light weight, so it is also widely used in the manufacture of mechanical parts and engineering structures.

Adequate supply of goods in the warehouse
1. The company has stable and good supply channels with sufficient supply sources
2. Complete goods, quality assurance, and delivery speed
3. Support wholesale and retail
Metals in the atmosphere can react with oxygen to form an oxide film on the surface, and the iron oxide formed on ordinary carbon steel will continue to oxidize, so that the rust continues to expand and eventually form holes. This can use paint or oxidization-resistant metal plating to protect the surface of carbon steel, but this protective layer is only a thin film, if the protective layer is destroyed, the underlying steel will begin to rust again. Whether the stainless steel pipe is corroded is related to the chromium content in the steel, when the chromium content in the steel reaches 12%, in the atmosphere, the surface of the stainless steel pipe generates a layer of passivated and dense chromium-rich oxide to protect the surface, which can prevent further reoxidation. This oxide layer is extremely thin, through which you can see the natural luster of the steel surface, giving stainless steel a unique surface. If the chromium film is destroyed, the chromium in the steel and the oxygen in the atmosphere re-form the passivation film, which continues to play a protective role. In some special environments, stainless steel will also have some local corrosion and failure, but stainless steel and carbon steel, there will be no uniform corrosion and failure, so the corrosion margin is not meaningful for stainless steel pipes.

We have a strict quality system, the raw materials of each order will be tested before production, and a rolling mill test certificate will be provided to customers.
We provide the roll form industry with the equipment they need to make high-quality steel trim, steel support framing, and other metal components. Our entry systems are designed to deliver reliable performance and efficient production for a variety of applications.

Stainless steel pipe is a type of hollow strip steel, and many pipelines are used to transport fluids such as oil, natural gas, water, natural gas, steam, etc. Other pipelines have relatively light bending strength and torsional strength together. It is also widely used in the manufacturing of mechanical parts and engineering structures.
Our tube mill operators complete all required ASTM and customer specifications testing, based on fabrication and surface finish requirements. Mechanical tests are performed at regular intervals, and all tubing is 100% inline eddy current tested. If the tubing is to be mandrel bent, ID tolerances are critical. Therefore, plug gauges are utilized to ensure adequate clearance and customer-required dimensions are met. 
Stainless steel square tube is a hollow strip of steel, because the cross-section is square so called square tube. A large number of pipelines used to transport fluids, such as oil, natural gas, water, gas, steam, etc., in addition, in the bending, torsional strength at the same time, light weight, so it is also widely used in the manufacture of mechanical parts and engineering structures.

1.Every cartons loaded with good shoring and strengthening in container well to make it safe arrive at destination port. 
2.Take container loading pictures and seal the container.
3.Transportation speed is quick. And keep customer eachstep informed.

Stainless steel square pipe classification: square pipe is divided into seamless steel pipe and welded steel pipe (welded pipe) two categories. According to the section shape can be divided into square and rectangular pipe, widely used is round steel pipe, but there are also some semicircular, hexagonal, equilateral triangle, octagonal and other special-shaped steel pipe.

For the stainless steel square pipe under fluid pressure, hydraulic tests should be carried out to test its pressure resistance and quality, and no leakage, wetting or expansion under the specified pressure is qualified, and some steel pipes should also be crimping test, flaring test, flattening test, etc., according to standards or requirements of the demander.

Over the years,