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
How to calculate the weight of carbon steel pipe?In modern industrial production activities, steel structure is an important basic component, and the type and weight of the steel p
Seamless Steel Pipe for Ship BuildingThe seamless steel pipe for ship building usage are mainly used for Level 1& Level 2 pressure pipe in piping system, boiler and super-heated un
Factors affecting the yield strength of seamless pipeYield strength is an important concept in the field of seamless pipe mechanics. It is the stress value of seamless steel pipe w
Role of Welding PreheatingPreheating means a process that heat weldments in whole or in weld areas before welding. Particularly good material for welding high strength level, harde
ERW pipe standardERW pipe standard are as follows:API 5L, ASTM A53 B, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672API 5L Standard aims to gas and water in oil and gas
Cross-rolling piercing process and quality defects and their preventionThe cross-rolling piercing process is the most widely used in the production of seamless steel pipes, and was
Warehousing inspection and loading and unloading of anti-corrosion spiral steel pipesEveryone knows that when we transport all kinds of things, we need to check carefully, especial
Weld leveling of straight seam steel pipeWeld leveling of straight seam steel pipe (lsaw/erw):Due to the impact of the welding current and the influence of gravity, the internal we
Short joint welding of oil casingThe oil casing is short joint, causing this phenomenon due to internal mechanical failures such as roller or shaft eccentricity, or excessive weldi
Quenching and tempering treatment of seamless steel pipeAfter the quenching and tempering treatment of seamless pipes, the parts produced have good comprehensive mechanical propert
Resistance welding methodThere are many types of electric resistance welding(erw), and there are three types of welding, seam welding, butt welding and projection welding.First, sp
Seamless steel pipe scheduleThe steel pipe wall thickness series comes from the British metrology unit, and the score is used to express the size. The wall thickness of the seamles
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