Permanent Steel Manufacturing Co.,Ltd

Structural pipe is a general structural steel pipe, referred to as structural pipe.

The welding method of seamless steel tube should be selected according to the material and wall thickness of the seamless tube.

Seamless steel tubes have a hollow section and are used in large quantities as pipelines for conveying fluids, such as pipelines for conveying oil, natural gas, gas, water and certain solid materials.

Mechanical properties of oil casing pipe J55 and K55 in API 5CT specification: 1.

The seamless steel tubes are mostly medium and high-carbon alloy steels.

Seamless steel pipes for boilers are high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipes used to manufacture high-pressure and above-pressure water-tube boiler heating surfaces.

Anti-corrosion technology of seamless anti-corrosion steel pipe: The production process of seamless anticorrosive steel pipes is relatively mature, and all kinds of anticorrosion can be produced.

After removing the root of the weld, double-sided weldments should be inspected. When using the oxyacetylene flame to cut the welding fixture on the alloy pipe that has a tendency to harden, defects in the ground part will be found.

Oil casing drilling is also called percussion drilling. The wire rope is used to send the drill bit to the bottom of the well. The beam mechanism is driven by the driving force to move one end of the beam up and down.

Welding residual stress is the temperature difference inside the weldment caused by the heating and cooling process during welding, which leads to inconsistent deformation and internal stress.