Special-shaped tube
POSTDATE:2020.03.07 VIEWS:1016 FROM:Special pipe
The special-shaped pipe is generally distinguished according to the cross-section. According to the material, it can be divided into seamless steel pipe special-shaped pipe, aluminum alloy special-shaped pipe and plastic special-shaped pipe. The following mainly introduces the steel pipe special-shaped pipe.
Special-shaped seamless steel pipe is the general term of seamless steel pipe with other cross-section shapes except for circular pipe.
According to the different shapes and sizes of steel pipes, they can be divided into equal wall thickness special-shaped seamless steel pipes (code D), unequal wall thickness special-shaped seamless steel pipes (code BD), variable diameter special-shaped seamless steel pipes (code BJ)
The special-shaped seamless steel pipe is widely used in various structural parts, tools and mechanical parts. Compared with the round pipe, the special-shaped pipe has larger inertia moment and section modulus, larger bending and torsion resistance, which can greatly reduce the structure weight and save steel.
The special-shaped steel pipe can be divided into elliptical special-shaped steel pipe, triangular special-shaped steel pipe, hexagonal special-shaped steel pipe, rhombic special-shaped steel pipe, octagonal special-shaped steel pipe, semicircular special-shaped steel circle, unequal hexagonal special-shaped steel pipe, five petal plum shaped special-shaped steel pipe, doubly convex special-shaped steel pipe, doubly concave special-shaped steel pipe, melon shaped special-shaped steel pipe, conical special-shaped steel pipe and corrugated special-shaped steel pipe.
