The metal tube may be categorized consistent with the rolling process, whether or not there are joints and the form of section. According to the rolling generation classification, the metal pipe may be divided into hot-rolled metal pipe and bloodless rolled metal pipe; According to whether or not there may be seam classification, metal pipe is split into seamless metal pipe and welded metal pipe, Steel Pipe which might be generally used welded pipe kinds may be divided into excessive-frequency welded pipe, immediately seam submerged arc welded pipe, spiral submerged
The metal tube has numerous advantages:
First, the floor of the metal tube is used to save you the extra durable, Steel Pipe now no longer quicker than the oxidation, will now no longer be fashioned withinside the metal pipe white rust;
Second, the total safety of metal pipe, thru heating the metal tube every a part of the galvanized, concave and convex vicinity has been protected;
Third, with anti-corrosion wear-resistant features, in order that using metal pipe longer
Fourth, as already outdoor the metal tube has been galvanized, Steel Pipe for this reason casting off the oil or paint outdoor the time, creation is extra convenient;
Fifth, galvanized metal pipe is 39 days will now no longer be frozen crack, specifically for the northern bloodless environment.
Steel tube, because the call implies, is product of metal pipe, generally used A3 metal, appropriate for conveying water, compressed fueloline, condensed water and different media and used as heating pipe. At present, the not unusualplace pipe withinside the marketplace particularly includes metal pipe and seamless metal pipe.
(1) Welded metal pipe
Welded metal pipe additionally called water, fueloline pipe, typically used A3 metal, Steel Pipe appropriate for conveying water, compressed fueloline, condensate and different media and used as heating pipe. According to the floor situation of the metal pipe, welded metal pipe may be divided into galvanized welded metal pipe and galvanized welded metal pipe.
In addition, consistent with the pipe quit nation of the pipe, there are forms of pipe quit with threaded metal pipe and pipe quit with out a threaded metal pipe. Non-galvanized pipe with out thread period of 4,112 m, Steel Pipe galvanized pipe with threaded and galvanized pipe is typically 419 m, pipe quit thread is tapered pipe thread, consistent with wall thickness may be divided into thin-walled pipe, not unusualplace tube and thickened tube 3 kinds.
In the pipeline task use, typically does now no longer use the thin-walled metal tube, the overall regular tube withstands the stress in 2MPa, however the thickened tube ought to be capable of face up to three MPa stress. Steel Pipe Welded metal pipe cloth is soft, smooth to reduce and thread processing, welding overall performance is good. However, galvanized metal pipe due to the corrosion of zinc peel withinside the welding site, it's far typically now no longer endorsed to apply welding connection. Steel Pipe The weight of the welded metal pipe is the theoretical weight of the galvanized metal pipe and the theoretical weight of the galvanized metal pipe, which nonetheless desires to be extended via way of means of three% 6%.
For welded metal pipes, first-class inspection will be performed according with modern countrywide or ministerial standards. In addition to their materials, models, specs ought to be in step with the layout requirements, however additionally to test their look first-class. The inspection objects encompass defects which includes crack, slag, folding, heavy skin, and the diploma of corrosion sag. Steel Pipe Thread-linked pipe additionally want to test the thread sealing floor and thread roughness and smoothness, for galvanized metal pipe ought to take note of whether or not the zinc peel off.
Welding pipe in garage need to pay attention, cannot be virtually located withinside the outdoor, however ought to be saved withinside the room, as a minimum to be saved withinside the shed, to keep away from solar and rain, Steel Pipe and now no longer immediately at the moist ground, to save you critical corrosion. Pipe quit with threaded pipe, each ends want to be with a ring or pipe cap to defend the thread from damage.
(2) Seamless metal tube
Seamless metal tube is thru the recent cylindrical metal withinside the fashionable path of perforation, it due to uniform cloth, a great corrosion resistance, excessive strength, Steel Pipe may be transported with stress media, which includes steam, superheated water and flammable explosive, poisonous substances. Therefore, it's far broadly utilized in engineering pipelines. Seamless metal tubes are typically used to move pressurized media, which includes steam, superheated water and flammable explosive, poisonous substances.