Shenzhen Shengjinlong Iron and Steel Co., Ltd.

0755-89345123

215088612@qq.com

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Shenzhen Shengjinlong Iron and Steel Co., Ltd.


Contact: Mr. Wu


Contact number: 0755-89345123


Mobile: 13682609066


E-mail: 215088612@qq.com


Address: No. 06, Building A, Building Materials Market, Pingshan New District, Shenzhen


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How to calculate the weight of seamless steel pipe?

A steel pipe made of a single piece of metal with no seams on its surface is called a seamless steel pipe. According to the production method, the seamless pipe is divided into a hot rolled pipe, a cold rolled pipe, a cold drawn pipe, an extruded pipe, a top pipe, and the like. According to the shape of the section, the seamless steel tube is divided into two types: a circular shape and a special shape. The shaped tube has a plurality of complicated shapes such as a square shape, an elliptical shape, a triangular shape, a hexagonal shape, a melon shape, a star shape, and a winged tube. The maximum diameter is 650mm and the minimum diameter is 0.3mm. Depending on the application, there are thick-walled tubes and thin-walled tubes. How do you calculate the weight of seamless steel tubes?


The seamless steel pipe is a steel pipe having no joints along the circumference of the cross section of the steel pipe, and is formed by hot rolling of round steel. Since the seamless steel pipe is made of a single piece of steel, it has a high strength and can withstand the pressure and temperature of the crucible. In addition to hot rolling, seamless steel tubes can be cold rolled and cold drawn, and then obtain outstanding products with thin walls, small dimensions and smooth surface. Seamless steel pipes are divided into general and special types: general seamless steel pipes are used for water, steam, gas pipes and machine parts for various purposes; special seamless steel pipes include boiler steel pipes, drilling pipes, pumps and compressors. Use steel pipes and so on.


The steel pipe with seam steel is made by three processes of forming, welding and finishing. The welding methods include furnace welding, gas welding, electric welding, etc. The performance of accepting high temperature and high pressure is not as good as that of seamless steel pipe, but the production is easy and the price is cheap. With the improvement of welding quality, it is widely used, and it is mostly used for water and gas transportation pipelines and heating systems and braking systems. The electrical conduits used in electrical installations are also attributed to seamed steel pipes.


Generally, the seamless steel pipe is made by hot rolling or cold drawing of ordinary carbon steel, high quality carbon steel, alloy structural steel or low alloy steel. It is used to lay pipes for conveying fluids and to make various structural parts.


The standard for seamless steel tubes is indicated by the outer diameter X wall thickness. The hot rolled steel pipe has an outer diameter of 32 to 630 mm and a wall thickness of 2.5 to 75 mm. The cold drawn steel pipe has an outer diameter of 2.0 to 150 mm and a wall thickness of 0.25 to 14 mm.


Seamless steel tube calculation method:

Seamless steel pipe weight per meter W = 0.02466 * S (DS)
Symbol meaning: D = outer diameter S = wall thickness calculation example: outer diameter of 60mm wall thickness 4mm seamless steel pipe, per m weight.
Weight per m = 0.02466 * 4 * (60 - 4) = 5.52Kg
Seamless steel tube theory weight calculation formula seamless steel pipe
W=0.0246615(DS)*S
W: theoretical weight of steel pipe kg/m D : nominal outer diameter of steel pipe mm S : nominal wall thickness of steel pipe mm
Galvanized steel
W=C[0.02466(DS)*S]
W—Steel tube theoretical weight kg/m C—increased weight coefficient of galvanized steel pipe compared to black tube
D — black tube outer diameter mm S — black tube wall thickness mm
Example: DN219 seamless steel pipe, wall thickness = 6mm
W=(219-6)*6*0.02466=31.51548KG/M
The seamless pipe name specification seamless steel pipe theoretical weight specification 12*1-1.5-2 seamless steel pipe theoretical weight specification 70*4.5-5-6-7-8-9-10-12-15-16 seamless steel pipe theory Weight specification 245*8-10-14-17-20-22-30-40
Seamless steel tube theoretical weight specification 18*2-3-4-5 Seamless steel tube theoretical weight specification 83*4.5-6-10-12-14-16-18-20 Seamless steel tube theoretical weight specification 335*8-12- 14-18-22-25-45-60
Seamless steel tube theoretical weight specification 25*2.5-3-4-5-6 Seamless steel tube theoretical weight specification 102*4.5-5-7-8-10-12-14-16-18-30 Seamless steel tube theoretical weight specification 402*10-15-20-25-30-35-40
Seamless steel tube theoretical weight specification 28*3-3.5-4-5-6 Seamless steel tube theoretical weight specification 108*4.5-5-7-8-10-12-14-18-20-22 Seamless steel tube theoretical weight specification 406*10-20-25-28-35-40
Seamless steel tube theoretical weight specification 32*3.5-4-5-6-8 Seamless steel tube theoretical weight specification 114*4.5-5-6-7-10-12-16-18-20 Seamless steel tube theoretical weight specification 428* 10-12-14-16-20-25-30-35-40
Seamless steel tube theoretical weight specification 36*3.5-5-6-8 Seamless steel tube theoretical weight specification 127*4.5-5-6-7-8-10-12-14-16-18-20 Seamless steel tube theoretical weight specification 530*10-12-14-16-18-20-30-40
Seamless steel tube theoretical weight specification 38*4.5-6-7-8-10 Seamless steel tube theoretical weight specification 133*4-5-6-8-12-15-18-20-25-30 Seamless steel tube theoretical weight specification 560*10-14-16-20-25-30-40-50-60

What is shared above is how to calculate the weight around the seamless steel pipe ? To explain, seamless steel pipes are widely used. The general-purpose seamless steel pipe is rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, and has the largest output. It is mainly used as a pipe or structural part for conveying fluid. The special-purpose seamless pipe has no boiler. Sewing pipe, chemical power, geological seamless steel pipe and oil seamless pipe.