1. Cleaning method: When cleaning the surface of the stainless steel pipe, care must be taken not to scratch the surface. Avoid using bleaching ingredients and abrasive washing liquid, steel wire balls, grinding tools, etc. To remove the washing liquid, rinse with clean water at the end of the washi

Threeway Steel has four sets of production lines now with advanced and completed equipment for production and inspection. The product is double-faced submerged-arc welded pipes. Now the diameter of our product is from φ219 to φ3120mm and the wall thickness is from 5mm to 25mm. Our product can comply

At present, my country is actively developing the steel structure industry. At first, it actively expanded the varieties of large-diameter spiral steel pipes used in the construction of steel structures to improve product performance. Including high-quality welded structural steel, high-strength hig

Seamless steel pipes are widely used. 1. General-purpose seamless steel pipes are rolled from ordinary carbon structural steel, low-alloy structural steel, or alloy structural steel, with the largest output, and are mainly used as pipes or structural parts for conveying fluids. 2. There are three ty

Analysis of the main reasons for the decline in the quality of steel bending pipes and how to pay attention. In pure bending, under the action of external force distance M, the outer arm wall of the neutral layer of the tube is thinned by tensile stress &1, and the inner side is subjected to compres

1. Straight seam high-frequency welded steel pipe: Straight seam high-frequency welded steel pipe is a welded steel pipe that is continuously produced on the production line using steel strip (coil) as the raw material and high-frequency welding process. The material strength is generally below 450M

Drill pipes are heavy, seamless pipe that provides rotation for circulating the drilling fluid. The pipe helps the drilling fluid to be pumped back up the annulus. The annulus of an oil well is the space between the casing and the piping or any immediate space between any casing and tubing surroundi

Original surface: 1 surface subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industrial equipment, etc., the thickness is thicker from 2.0MM to 8.0MM. The stainless steel pipe processing factory also has a matt

The high-frequency induction coil of the straight seam steel pipe should be as close as possible to the position of the extrusion roller. The internal stress of the steel pipe is small and evenly distributed, which can effectively prevent stress corrosion cracking, high dimensional accuracy, and fac

1. The use of large-diameter stainless steel pipe can be divided into oil well pipes (casing pipes, oil pipes, and drill pipes, etc.), pipeline pipes, boiler pipes, mechanical structure pipes, hydraulic prop pipes, gas cylinder pipes, geological pipes, chemical pipes (high-pressure chemical fertiliz