Views: 2 Author: Site Editor Publish Time: 2019-01-09 Origin: Site
The square tube is a hollow square section light thin-walled steel pipe, also known as steel refrigeration curved profile. It is a square cross-sectional shape and size steel made by Q235 hot-rolled or cold-rolled strip or coiled steel as the base material after cold bending processing and then high-frequency welding. In addition to the thickening of the wall thickness of the hot-rolled thick-walled square pipe, the corner size and the straightness of the edge are both at or above the level of the cold-formed square tube of the electric resistance welding. Good comprehensive mechanical properties, good weldability, cold, hot workability and corrosion resistance, with good low temperature toughness.we are Square Steel Pipe Sellers.
2, square tube use
The purpose of the square tube is construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power support, steel structure engineering, electric power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, high-speed road railing, Building construction, pressure vessels, oil storage tanks, bridges, power station equipment, lifting transport machinery and other high-load welded structural parts.
1. Uniformity of galvanized layer: The steel pipe sample shall be continuously immersed in copper sulfate solution for 5 times without being red (copper plating)
2, surface quality: the surface of the galvanized steel pipe should have a complete galvanized layer, there must be no black spots and bubbles that are not plated, allowing for a rough surface and local zinc tumors.
The product sales network covers more than 20 cities in Guangdong, Guangxi, Hunan, Hainan, Jiangxi, Hubei and other countries, and exports to Europe, North America, South America, Japan, South Korea, Southeast Asia, the Middle East and other parts of the world.
Over the years, “Suoyu” has exerted its good business integrity and excellent service, and has won the support of the majority of suppliers and sellers, and has enjoyed a certain reputation and reputation in the industry. Following the continuous innovation of the steel market, people adhere to the development concept of “doing fine, be specialized, and being strong” to meet the changes of the times and the new dishes of the industry.