Hunan Great Steel Pipe Co., Ltd provides services that reduce total project cost and keep complex piping systems on schedule. Including Cutting, Rolling and Bending, Coating, Beveling, Threading, Welding and Assembly Forming.
Three ways to ensure smoothness as required when producing straight seam steel pipe1. Rolling mold: The general method of rolling mold is to press the glass powder into a glass mat
Benefits of using 45 degree elbows in construction and infrastructure projectsBenefits of using 45 degree elbows in construction and infrastructure projectsConstruction and infrast
Significance of the heat treatment process of oil casingHeat treatment is the most important process in the processing of oil casing. Whether the performance and quality of the fin
The advantage of galvanized seamless pipeThe technical plastic-lined pipe of galvanized seamless pipe inherits the respective advantages of pipe and plastic pipe, and the pipe is r
Corrosion impact of spiral steel pipeCorrosion impact of spiral steel pipeSpiral steel surface by high velocity and turbulence of the fluid-like impact, along with wear and corrosi
API 5L Gr BAPI 5L Gr.B grade designations come from API Spec 5L Specification for Line Pipe. Standard Line Pipe has grade designation A and B. Stronger grades have the designation
Notes on China’s current “2019nCov”To our customers:At present, the Chinese government is taking the most powerful measures，and everything is under control. Life is normal in most
The 3PE anticorrosive steel pipe has these advantages3PE anti-corrosion steel pipe refers to a 3-layer structure polyolefin coating (MAPEC) outer anti-corrosion steel pipe, which i
Oil casing is the lifeline for maintaining oil and runningPetroleum special pipe is mainly used for drilling of oil and gas wells and transportation of oil and gas. It includes pet
Annealing type of spiral steel pipeAnnealing type of spiral steel pipe1. Spheroidizing annealingSpheroidizing annealing is mainly used for hypereutectoid carbon steel and alloy too
Galvanized steel pipeGalvanized steel pipe is a technique to improve the corrosion resistance of steel pipe and its beautiful decoration. Currently, the most commonly used method f
Common Welding DefectsIn the production process of steel welding, there will be the emergence of steel defects if the welding method is not correct. The most common defects are hot
Anti rust processAnti rust processSteel surface treatment is mainly anti rust, the following is anti rust process:First step is to clean, use cleaning solvent emulsion cleaning the
Black annealedBlack annealed strictly speaking not an ordinary annealing, but the process and annealing almost. Steel black pipe skin is black oxide!Annealing: annealing the metal
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