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