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Disadvantages of steel pickling process
Pickling is widely used in hot-rolled sheet metal blank that the removal of surface oxide scale, such as hot-rolled steel pipe in need of phosphate or other surface coating before processing to remove iron oxide; welded pipes in galvanized or other hot-dip galvanizing, plating surface preparation...Read more -
API 5L Linepipe spec
1 Scope 1.1 This specification covers sesamless and welded steel line pipe. It includes standard-weight and extra-strong threaded line pipe. It includes standard-weight and extra-strong threaded line pipe; and standard-weight plain-end,regular-weight plain-end, special plain-end, extra-strong pla...Read more -
API 5L X60 LSAW Steel Pipe
The production flow of LSAW large-caliber thick-wall straight seam double-sided submerged arc welding steel pipes is: firstly mill the edge of medium plate and put it into pressure forming device,form it into a circle according to the mode of J.C.O, and then preweld it after seam butting by seam ...Read more -
Galvanized steel pipe
When we discuss seamless steel pipe, Seamless steel pipe is with a wide range of applications in our construction industry. in general, Galvanized seamless tube is the hot dip galvanized and electro-galvanized two categories. The first to introduce hot-dip galvanizing, including wet, dry the, lea...Read more -
ERW pipe hardness and quench
ERW steel pipe surface heat treatment is usually heated by induction heating or flame way. The main technical parameters is surface hardness, local hardness and effective case depth. Vickers hardness test hardness can also be used Rockwell hardness (hrc) or surface. Test Force (ruler) of choice a...Read more -
Difference between ms pipe and cast steel pipe
Cast steel pipe is pipe with casting. Cast steel pipe is for water supply, drainage and gas pipelines, which includes cast straight pipe and fittings. Labor intensity. By casting methods, it is divided into continuous cast steel pipe and centrifugal cast steel pipe, cast steel pipe which is divid...Read more -
Difference Between ERW SSAW LSAW
Steel pipe for pipe technology, can be divided into (SML), mainly as the Oilfield internal transportation pipeline and small-diameter high-pressure natural gas pipeline, used for a small number of long-distance gas pipeline, the vast majority of long-distance pipeline with Direct seam high freque...Read more -
Defect detection on steel pipe surface with alternating magnetic flux leakage detection system
Industrial pipe work in very poor conditions, prone to corrosion and fatigue damage or become damaged due to the development of the potential pitfalls of the pipeline within the spill. Especially oil pipelines and gas pipelines in the long-term use, due to the unstable surface foundation, corrosi...Read more -
Large Diameter Seamless Steel Pipe
Large diameter seamless steel pipe means outside diameter more than 100MM and the wall thickness is greater 0.2 than the outer diameter of the pipe, Large-diameter seamless steel tube is made from solid tube ingot or the perforation capillary, then through hot rolling and cold rolling or cold dia...Read more -
Impact test of precision steel pipe
By impact test different metal mild steel, steel and other industrial iron and T8 impact absorbed energy at different temperatures, the determination of low-carbon steel ductile-brittle transition temperature, relatively ductile-brittle transition metal observed characteristics. Toughness is the ...Read more -
Hot-dip galvanized (galvanizing)
Hot-dip galvanized (galvanizing), also known as hot-dip galvanized, it is an effective anti-corrosion of the metal, mainly used in various sectors of the metal structure facilities. The rust steel immersed in liquid zinc melt around 500 ℃, steel members attached to the surface of the zinc layer, ...Read more -
HFW pipe seamless technology
HFW welded steel pipe is always accompanied with the competition and continue to develop a seamless steel pipe. Seamless steel tubes welded steel pipe in order to gradually replace the key is to have high product quality and lower production costs. In order to play HFW pipe wall thickness, geomet...Read more