Special-shaped seamless steel pipe is a general term for seamless steel pipes with other cross-sectional shapes other than round pipes. According to the shape and size of the steel pipe section, it can be divided into equal-wall thickness special-shaped seamless steel pipe (code D), unequal wall thickness special-shaped seamless steel pipe (code BD), variable diameter special-shaped seamless steel pipe (code BJ).
Special shape steel pipe is a kind of economic cross section steel tube including non circular cross section, equal-thickness wall, variable wall thickness, symmetrical section, no-symmetrical section, etc. Such as square, rectangle, conical, trapezoidal, spiral, etc. The special shape steel pipe is more suitable for the particular condition of use. And it can save metal and improve the labor productivity of parts and components manufacturing.
Steel pipe special-shaped pipe can be divided into oval steel pipe, triangular steel pipe , hexagonal steel pipe , diamond-shaped steel pipe, octagonal steel pipe, semicircular steel circle, unequal hexagonal steel pipe, etc.Among them, the rectangular steel tube is the most widely used special-shaped tube.
Square and rectangular pipe is a name for square pipe and rectangular pipe, that is, steel pipes with equal and unequal side lengths. It is made of strip steel that has been processed and rolled. Generally, the strip is unpacked, flattened, coiled, welded to form a round tube, and then rolled into a square tube from the round tube and then cut to the required length.
The use of special-shaped steel pipes:
1. From daily necessities to aircraft and rocket manufacturing, radio communications, nuclear power plants, and space technology, special-shaped steel pipes are widely used;
2. In terms of machinery manufacturing, special-shaped tubes are used to manufacture PTO shaft steel tube , pistons, various tools, fasteners, watch cases, and various mechanical parts of motor vehicles. The special-shaped tube not only makes the mechanical design more reasonable but also reduces the weight of the equipment;
3. In terms of construction, special-shaped tubes are used to make doors and windows, which are not only light and durable in structure, but also low in cost;
4. Thin-wall special-shaped tubes are used for structural parts of bicycles, motorcycles, tractors, automobiles, and large buses. This kind of pipe has a large section coefficient, strong bending and torsion resistance, and a smooth surface, so it is light in weight.
5. Special-shaped pipe machine brackets, large-size special-shaped pipe machine guide rails, widely used in instruments, meters, communication equipment, and medical equipment. They have the advantages of being lightweight, beautiful appearance, having a novel style, etc., and are easy to operate and carry.
Post time: Mar-21-2024