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

The fire-fighting pipeline includes two systems: the fire hydrant system and the water sprinkler system.Stainless steel fire-fighting piping system is a kind of fixed fire-fighting facility widely used in China. Nowadays, 304 stainless steel pipes are used in fire water supply pipes in sprinkler sys

Pipelined HDPE flange connection device, including carbon steel pipe (1), lined HDPE pipe (2), carbon steel flange, HDPE flange (4), and metal ring gasket (5); carbon steel pipe (1) Carbon steel flanges are welded at the breaking point, the HDPE-lined pipe (2) is inserted into the carbon steel pipe

First, the methods of cold galvanizing and hot galvanizing of galvanized steel pipes are different:1. Cold plating: It is a process of anti-corrosion treatment on the surface of workpieces through electrochemical principles.2. Hot-dip galvanizing: also known as hot-dip galvanizing, is a method in wh