Spiral welded pipe: it is made by rolling low-carbon structural steel or low-alloy structural steel strip into pipe blank according to the viewpoint of certain spiral line (called forming angle)， and then welding the pipe seam. It can produce large-diameter steel pipe with narrow strip steel. Spiral welded pipe is mainly used for oil and natural gas transportation pipeline， tensile strength and cold bendingof the weld meet the requirements.
5Idler pipe: it is used for electric welding steel pipe of idler of belt conveyor. It is generally made of Q， QA， B steel and steel， with a diameter of -mm. There are certain requirements for pipe tortuosity，Products Show mining and other industries to meet the provisions of cold it can meet the requirements of refrigeration and achieve the practical effect of less damage. It is applicable to water conservancy engineering water pressure and flattening tests are carried out.
tJacksonvilleWhen it is used for ground heating and hot spring transportation，Austin10CrMoAl alloy pipeInventory Quotes cold and corrosion prevention. In addition， the chemical raw material transmission pipeline has a wide indoor space.
Classification by end shape
KMalaki Spiral seam submerged arc welded steel pipe (SY- for pressure fluid transportation is a spiral seam steel pipe used for pressure fluid transportation， which takes hot-rolled steel strip coil as pipe blank， often warm spiral forming and welded by double-sided submerged arc welding. The steel pipe has strong pressure bearing capacity and good welding . After various strict scientific inspections and tests it is safe and reliable to use. The steel pipe has large diameter and high transportation efficiency， and can save the investment in laying pipelines. It is mainly used for transporting oil and natural gas.
HiIn addition to these， the advantages of galvanized pipe are also reflected in some other aspects. For example， its reliability is also very good. Because the combination of zinc coating and steel is good news for metallurgy， the durability of its coating is more reliable. And when the zinc coating forms a special metallurgical structure， this structure can withstand mechanical damage during transportation and use. When in use，Products Show it also has the advantages of multiple protection. Because every part of the product can be plated with zinc， even in depressions， sharp corners and hidden places can be protected in many ways. It is very convenient during construction. It really saves time and effort. It is because of so many advantages that the utilization rate of this product is very high. And it can avoid the time required for painting on the site after installation. If you want to purchase on your occasion， remember to go to the manufacturer， so that the price will be more favorable.
As long as the pipe material is high-strength alloy steel， including alloy steel pipes with temperature resistance， wear resistance and low temperature resistance， the welding process shall be focused on preventing the tendency of martensite structure and cracks due to welding high-temperature operation. The general process requirements are that the welding rod shall be selected and baked as required and sent to the welder for use. The oil and water shall be removed before welding on both sides of the weld Rust and sundries shall be removed and cleaned. The welding line energy shall be as small as possible to minimize the swing during the welding process. The arrangement of the last weld shall have annealing effect on the heat affected zone as far as possible. Slow cooling after welding， cover with asbestos cloth， etc.
pI-beam features: the content of chromium carbon alloy is -%，Products Show the hardness of chromium carbide alloy is V， and the macro hardness is - HRC
ZMetric welded pipe: it is used as seamless pipe in standard. The welded steel pipe expressed by outer diameter * wall thickness mm is welded by hot and cold strip welding of general carbon steel，Austin10CrMoAl alloy pipeInventory Quotes high-quality carbon steel or Puneng low alloy steel， or it is made by cold drawing after hot strip welding. Metric welded pipe is generally used as structural parts， such as transmission shaft， or to transport fluid. The thin wall is used to produce furniture and lamps. It is necessary to ensure the strength and zigzag test of steel pipe.
MRange Straight seam electric welding steel pipe (yb- is a steel pipe whose weld is longitudinally parallel to the steel pipe. It is usually divided into metric welded steel pipe， welded thin-walled pipe， transformer cooling oil pipe， etc.
dY Phosphorus: it can significantly reduce the plasticity and toughness of steel， especially at low temperature. This phenomenon is called cold brittleness. In high-quality steel，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd sulfur and phosphorus should be strictly controlled. On the other hand， low carbon steel contains high sulfur and phosphorus， which can make it easy to cut， which is beneficial to improve the machinability of steel
According to the pipe wall thickness， pipes made of relatively thin materials such as steel strip can be welded with high frequency， and some thin-walled pipes can be welded with shielding gas; Pipes with wall thickness more than mm can be welded by hand.
Compared with manual binding， welded steel mesh can reduce the occurrence of cracks by more than %. The use of reinforcement mesh can make the project construction faster. As long as the reinforcement mesh is laid as required， the concrete can be poured， eliminating the links of reinforcement on-site cutting， placing one by one and binding. It can save % - % of working hours， greatly accelerate the construction progress and shorten the construction cycle.
Management Departmentn Spray is OK. This method can not only completely remove rust， oxide and dirt， but also the welded pipe will be affected by abrasive impact and friction， resulting in the average roughness of the welded pipe.
FThe shape of I-beam is similar to that of H-beam. What is the difference between them?
Steel pipes can be classified by their models:
iJacksonville Operating conditions
kVThey are not affected by surrounding factors and processes， including corrosion.
In our daily life and work， we can often see a lot of steel products. At the same time， among many steel products， the figure of galvanized pipe is particularly prominent. This is because this kind of pipe will be applied to many engineering construction we often see in our life. There are also countless products processed with this kind of pipe. For example， in the field of mechanical equipment processing we often see， the application of galvanized pipe is more frequent. Lets discuss the application scope of this kind of pipe today.