Drill pipe is a fundamental component of the drill string. It is made of seamless steel tubing (with a wall thickness typically between 9 and 11 mm). Its main functions are to transmit torque and deliver drilling fluid, and to deepen the wellbore by gradually lengthening the drill pipe.

In the building materials market, structural steel has become an indispensable raw material in various structural and building projects. Among common structural steel sections, such as U-Beam, V-Beam, I-Beam, and H-Beam, two—I-Beam and H-Beam—are often easily confused due to their similar Beam.

Concrete Weight Coating (CWC) is a heavy reinforced concrete layer applied to the external surface of steel pipelines. Its primary function is to provide negative buoyancy, mechanical protection, and structural stability, especially in offshore and underwater environments.

FBE (Fusion Bonded Epoxy) coating is a single-layer protective system that forms an anti-corrosion coating on the surface of steel pipes through an electrostatic spraying process.

In the protection and application of metallic materials, hot-dip galvanized (HDG) steel plate, with their unique performance advantages, have become "invisible guardians" in fields such as construction, transportation, energy, and agriculture. Galvanized steel sheets can also be divided into cold-dip galvanized steel plates and hot-dip galvanized steel plates. Since its invention in the ...

Under the requirements of the American Petroleum Institute and its API 5CT specification, N80 and P110 are two commonly used casing pipe grades in oil and gas well construction.