The advantages of shiny galvanized pipe are:
6Galvanized pipe has excellent corrosion resistance
hOshavaThe side length of I-beam is small and the height is large， so it can only bear the force in one direction.
The use of hot dip galvanizing has expanded with the development of industry and agriculture. Therefore， hot-dip galvanized products have been widely used in industry (such as chemical equipment， petroleum processing， marine exploration， metal structure，Products Show power transportation，Markham 20CrMnTi alloy pipeShielding protection conditions shipbuilding， etc.)， agriculture (such as sprinkler irrigation， construction (such as water and gas transportation， wire casing， house， etc.)， bridges， transportation，Products Show etc. because hot-dip galvanized products
GDoboy After chromate passivation the zinc coating forms white， colorful and military green， which is beautiful and generous and has certain decoration;
UbIt is divided into circular welded pipe and special-shaped (square， etc.) welded pipe.
Because the combination is strong， zinc iron is miscible and has strong wear resistance;
Metric 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， 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.
tAll the cracks occur at -mm away from the edge below the alloy pipe， and the macroeconomic orientation is vertical to the cold rolling orientation，Products Show showing a "high mountain" shape.
BThe pipeline shall be positioned according to the drawing design， and the pipeline support shall be prefabricated according to the site conditions. Hang the wire from the th floor down and fix the support.
VProject scope There is a great demand for welded steel mesh in Chinas market.
iH Phosphorus: it can significantly reduce the plasticity and toughness of steel，Markham 20CrMnTi alloy pipeShielding protection conditions especially at low temperature. This phenomenon is called cold brittleness. In high-quality steel， 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
Generally， what are the customers requirements and standards during acceptance? When the galvanized pipe is accepted， you can judge whether it is qualified from the appearance， or whether there are problems such as missing plating or bubbles on the outer wall of the whole square pipe. Only by solving these problems in time can it be judged as qualified and better used.
Chromium can improve the hardenability and wear resistance of steel， and improve the corrosion resistance and oxidation resistance of steel
Product linevWhen excavating a tunnel in a stratum where the rock is not hard and complete，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd it is generally necessary to excavate a diversion pit (also known as pilot hole) and set temporary support.
XRequirements of alloy tubes for low and medium pressure boilers
It bears high internal working pressure.
oOshava Because the combination is strong， zinc iron is miscible and has strong wear resistance;
qD 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.
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.