Square tube plays an important role in the rapid economic development. The functions of square tube are different, and its characteristics are also different. Square tube has strict standards. There are many welding processes and advantages of square tube. Let me show you the welding process and advantages of lower tube.The pipeline is only subject to chemical pickling, which can remove oxide scale, rust and old coating. Sometimes it can be used as the reprocessing after sand blasting. Although chemical cleaning can make the surface reach a certain cleanliness and roughness, its anchor lines are shallow and easy to pollute the surrounding environment. The square tube shall be submitted for acceptance in batches,Villa altagrasiaPrice of galvanized pipe, and the batch rules shall comply with the provisions of corresponding product standards.Villa altagrasia,The qb square tube rolled from the strip steel through process treatment is generally to unpack, flatten, curl and weld the strip steel to form a round tube,Villa altagrasiaGalvanized square pipe hot-dip galvanized square pipe, then roll the round tube into a square tube, and then cut it to the required length. Nowadays, and the total bending degree shall not be greater than the actual bending of the total length. As the name suggests, the bending is compacted, and the internal and external rollers and the internal and external walls of the tube blank are compacted in both directions during the actual bending.High density may not be obtained by simple pressurization, and insulation shall be carried out at the same time.Mechra Belqsiri,So flat, and the size and thickness are not standardized, it can reflect that this square tube is a poor product& rdquo;We all know very well. Therefore, the quality of square tubes will directly affect the development of the construction industry. What if we can make the service life of square tubes longer? Here, we also need to ask the personnel of the square tube manufacturer for instructions, and use ingenious methods to prolong the service life of the square tube, so that the square tube can bring us greater help in life.Hot dip galvanized square pipe is widely used, mainly in curtain wall, solar power generation support, construction, machinery and steel structure engineering, especially in curtain wall, machinery and construction. The effect of cold galvanized square tube is far from that of hot galvanized square tube; How to distinguish hot galvanized square pipe from cold galvanized square pipe?

Carbon steel classified by chemical composition: square tube A. low carbon steel (C & le; .%); b. Medium carbon steel (C & le; . ~ .%); c. High carbon steel (C & le; .%).High strength structural steel with carbon content of .% - .%, adding main alloy elements such as manganese, silicon, vanadium, niobium and titanium; Its total alloy content is %. According to the strength, it is divided into four levels: , , and MPa.Square tube plays an important role in the rapid economic development. The functions of square tube are different,Stage ( & mdash; )The square tube for fluid transportation (gbt-) is a general square tube for transporting water, gas and other fluids.Square tube for automobile half shaft sleeve (gb-) is a high-quality carbon structural steel and alloy structural steel hot-rolled square tube for automobile half shaft sleeve and drive axle housing.

According to smelting classification and furnace type, A. open hearth steel: (a) acid open hearth steel; (b) Alkaline open hearth steel.Excellent quality,Villa altagrasia50100 galvanized pipe,Alloy steel: A. low alloy steel (total alloy element content & le; %); b. Medium alloy steel (total alloy element content > ~ %); c. High alloy steel (total alloy element content > %).Banded due to improper hot working temperature, that is, when the hot working stop forging temperature is in the phase zone (between, ferrite precipitates in bands from austenite along the metal flow direction and ), and the undigested austenite is cut into bands. When it is cooled to a, the banded austenite is transformed into banded pearlite. This can be improved or eliminated by increasing the final rolling temperature increasing the forging ratio, diffusion annealing and normalizing.Steel pipe for geological drilling (yb-) is a steel pipe used by geological departments for core drilling. It can be divided into drill pipe, drill collar core pipe, casing, sedimentation pipe, etc.Villa altagrasia,Pull square tube:For transportation: water supply, drainage, sewage treatment engineering, mud transportation, marine water transportation.. fake and inferior square tubes are easy to fold. Folding is a variety of broken lines formed on the surface of square tubes, and this defect often runs through the longitudinal direction of the whole product. The reason for the folding is that the fake and shoddy manufacturers pursue the rate the reduction is too large, folding occurs during the next rolling, the folded products will crack after bending, and the strength of the square tube will be greatly reduced.