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
Difference between saw and hfw pipeDifference between saw and hfw pipe(1) submerged arc weldingSubmerged arc welding use a continuous feed wire as electrode and filled metal. Weldi
Continuous hot dip galvanizing process technologyContinuous hot dip galvanizing process has Sendzimir, modified Sendzimir US Steel Union law three kinds. Sendzimir method and impro
HFW steel pipe defects in productionHigh frequency welded steel pipe if produce control is better, fusion surface of molten metal or oxide will be left. If the cutting of a weld sa
Difference between black steel pipe and galvanized steel pipeBlack steel pipe is the uncoated steel and is also called as black steel. The dark color comes from the iron-oxide form
Cold galvanized(galvanizing)Cold galvanized(galvanizing) also called electro-galvanized cold galvanizing, which is the use of the pipe member through electrolysis degreasing, pickl
Characteristics of resistance welding steel pipes（ERW steel pipe)ERW (Electric Resistance Welding) steel pipe is referred to as ERW pipe or HF welded pipe, it has many advantages a
Galvanized mild steel welded seam welding procesSteel surface coating is designed to corrosion or decorative, or both. The seam welding, not only to obtain a sufficient joint stren
Cooling rate of X80 pipeline steel welding heat affected zoneFor long-distance natural gas pipeline, using high grade pipeline steel is the main way to save costs. Canada’s pipelin
Difference between erw and dsaw pipesProcessHigh-frequency straight seam welded pipe (ERW) production process is easy, a single production specifications, using resistance welding
Anticorrosion performance of galvanized mild steel pipeGalvanized mild steel pipe is cheap and anticorrosive performance is relatively better related stainless steel pipes. Galvani
brinell hardness of carbon steel pipeBrinell hardness (HB) with a certain diameter of the steel balls or tungsten carbide balls, pressed into the pattern surface of a predetermined
Cooling in continuous castingContinuous casting process is gradually cooled and solidified by forced into a hot slab physical process, but also the slab during solidification to wi
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