Changsha Xiangjia Metal Materical Co., Ltd.

Q235B  square steel tube  theory weight calculation formulas are as follows: 1. Calculation method of Q235B square steel tube with unequal length and width [(Length+width)*2/3.14-thickness]*thickness*0.02466*tube length=weight/piece 2. Calculation method of Q235B square steel tube theory weight of the same length (Length+width)*2*7.85*tube length*thickness=weight/piece 3. Calculation method of Q235B seamless steel tube theory weight: 4 x wall thickness x (side length-wall thickness) x 7.85 *tube length = weight/piece Note: the side length and wall thickness are in millimeters, and the values are substituted into the above formula directly to get the weight of the square tube per meter, in grams. 4. Weight calculation formula for Q235B aluminum square tube:  The volume X density 5. The formula for calculating the weight of Q235B galvanized square tube: (Length+width)*2*7.85*tube length*thickness*1.06=weight/piece Note: 1.06 is the coefficient of zinc coating.

Raw materials for   SSAW pipe   can be varilty, but different materials made SSAW pipes have different usage. So that only if you understand the purpose, you can find a cost-effective material to make SSAW steel pipe for your need. At present, the common SSAW pipe materials on the market are Q235A, Q235B, 10#, 20#, Q345 (16Mn), L, L390NB/MB (X56N/M), L415NB/MB (X60N/M), L450MB (X65) , L485MB(X70), L555MB(X80).

Carbon steel elbow  is used to change the direction of the pipeline on the carbon steel pipe. There are threaded connection and welded connection. According to the angle, there are 45° and 90°180°.   here we briefly describe the application of carbon steel elbows: (1) It not need to take tube blanks as raw materials, which can save the cost of tube-making equipment and molds, and can obtain arbitrarily large diameter and thin carbon steel elbows. (2) Short the manufacturing cycle, which greatly reduced the production cost. And it does not require any special equipment that make it able to do on-site processing for large carbon steel elbows. 　　 (3) The blank is a flat plate or a developable curved surface, so the blanking is simple, the accuracy is easy to guarantee, and the assembly and welding are convenient. 　　 (4) Carbon steel elbows are good for pipeline series in petroleum, gas, chemical, hydropower, construction and boiler industries etc.

1. Anti-corrosion failured. When the pipeline is erected, it is necessary to do anti-corrosion job or use anti-corrosion   SSAW steel pipe   directly. The reason why the pipeline is corroded is because the anti-corrosion layer of the pipeline is damaged. Once the anti-corrosion layer is separated from the pipe, it will cause corrosion failured and rusted. 2. The influence of external conditions. Check the characteristics and temperature of the medium around SSAW steel pipe, they are might be corrosive. Because the corrosiveness of the medium is closely related to the various microorganisms contained in the soil. And if it used as a long-distance pipeline, the nature of the soil environment is more complicated. In addition, the temperature of the environment in which the pipeline is located will also affect the corrosion of the SSAW steel pipe. If the temperature is higher, the corrosion rate will faster, while the temperature is low, the corrosion rate will slower.

Seamless pipe   is a long steel pipe with a hollow section and no joints on the periphery. 1. According to production methods, seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes. 2. According to the shape, there are round pipes and special-shaped pipes. Special-shaped tubes include square tubes, rectangular tubes oval tubes, semicircular tubes, triangular tubes, hexagonal tubes, convex-shaped tubes, plum-shaped tubes, etc. 3. According to materials, it can be divided into ordinary carbon structure tube, low alloy structure tube, high-quality carbon structure tube, alloy structure tube, stainless tube, etc. 4. According to the purpose, there are boiler tubes, geological tubes, oil tubes, etc. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Ye

SSAW steel pipe   means spiral pipe, which is made of hot-rolled steel plates. Adjust the squeeze roll to control the weld gap at 1~ 3mm, and make the both ends of the welding joint flush. 1. If the gap is too big, the weld will not be fused or cracked due to poor intercrystalline joints. 2. If the gap is too small, it will cause the weld to burn or affect the surface quality of SSAW steel pipe. So a firm weld seam is very important. If the extrusion force of the SSAW steel pipe is too small and the weld metal strength is low, it is easy to cause to crack; if the extrusion force is too large, the molten metal will be squeezed out of the weld, which not only reduces the weld strength, but also produces a lot of The internal and external burrs may even cause welding seam or other problems.

  The Wall thickness of   LSAW steel pipe : 8mm-50mm The thickness of LSAW steel pipe can be produced to 50mm, and the pressure of the press machine is limited which can not over 50mm. If you want a steel pipe thickness over 50mm, should take seamless steel pipe. The thinnest of LSAW steel pipe can be produced to 8mm. When producing LSAW steel pipes, pressed the plate into a round shape, so the wall thickness of the steel plate have requires. If the steel plate is too thin, the press machine cannot crush the steel plate or cause to severely deformed for too thin. So the thinnest LSAW steel pipe is 8mm. The wall thickness below 8mm is made by coiled pipes, which are all spliced section by section. It is different from straight seam.

LSAW steel pipe  widely used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. It is one of the 20 key developing products in our country. Used for liquid transportation: water supply and drainage. Used for gas transportation: coal gas, steam, liquefied petroleum gas. For structural purposes: used as piling pipes and bridges; pipes for docks, roads, and building structures etc.. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.

Small diameter seamless steel pipe  have hollow cross-section and round shape without joints. Seamless pipes are widely used in different fields, such as automobile drive shafts, oil drill pipes and bicycle racks etc.. The material of small diameter seamless steel pipes: 10#, 20#, 35#, 45#, 16Mn, 27SiMn, 15CrMo, 12Cr1MoV, 10CrMo910, T91, P91, J55, K55, Q345A, Q345B, Q345C, Q345D, Cr5Mo2, etc. The hollow structure of the small-caliber seamless pipe have many advantages on some fields, which may reduce processing procedures, save processing time and improve production efficiency. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.