Basic knowledge of stainless steel pipes

1．  Stainless  steel pipe has various shapes, such as square pipe, circular pipe and  rectangular pipe. No matter what shape of pipe is changed from circular  pipe in the welding process. General pipe materials are in various  specifications of non-standard and national standard. The commonly used  specifications of decorative pipe are as follows:

2.  All the matching specifications are the same in front of the die. To  make square tube and rectangular tube, just add deformation die in the  back.

3. Ribbon opening formula of steel strip: round pipe,  (diameter-thickness) X3.14 + thickness = bandwidth, so that we can know  how wide a pipe should be, such as: 19X0.25 ribbon is: (19-0.25)  X3.14+0.25 = 59mm, square pipe: side length X4-2 = bandwidth, such as  F25X25 ribbon is 25X4-2 = 98 mm.

4. Formula for calculating  pipe weight: round pipe, bandwidth X thickness X length X  density-bearing weight, e.g. 19X 0.25 weight is 59X 0.25X6X0.00793 =  0.7kg, square pipe is the same, e.g. F25X25X0.25 weight 98X  0.25X6X0.00793 = 0.16kg

5. The market price of stainless steel  pipes is generally divided into three grades: thick pipes, middle pipes  and thin pipes. Each grade differs by 500 yuan. Thick pipes are above  0.4 yuan, 0.33 to 0.38 yuan, and thin pipes are below 0.33 yuan. For  example, thick pipes sell for 9000 yuan/ton. The middle pipes are 9500  yuan/ton and thin pipes are 10000 yuan/ton.

6. The production  cost of stainless steel decorative pipes in Foshan is generally 2,000  yuan/ton. Because the thickness of pipes is different, it can only be  calculated on average. The cost source is 1,000 yuan/ton for pipe making  and polishing, 1,000 yuan/ton for calendering and annealing, and 1,000  yuan/ton for strips. For example, the material is 8,000 yuan, and the  cost is 10,000 yuan/ton.

7. the  royalty of salesmen of stainless steel pipe factory is generally 50  yuan to 100 yuan / ton, the lowest volume of business is 20 tons per  month