Bolt, High strength bolts, Screw
Specially shaped seamless steel pipes are widely used in various structural components, tools, and mechanical components. Compared with circular pipes, special-shaped pipes generally have larger moments of inertia and cross-sectional modulus, and have greater bending and torsion capabilities, which can greatly reduce structural weight and save steel. Special shaped pipes are generally distinguished based on their cross-section, and can be divided into seamless steel pipe special shaped pipes, aluminum alloy special shaped pipes, and plastic special shaped pipes according to their materials. The following mainly introduces steel pipe shaped pipes. Steel pipe shaped pipes can be divided into elliptical shaped pipes, triangular shaped pipes, hexagonal shaped pipes, diamond shaped pipes, octagonal shaped pipes, semi-circular shaped pipes, unequal hexagonal shaped pipes, five petal plum blossom shaped pipes, double convex shaped pipes, double concave shaped pipes, melon shaped pipes, conical shaped pipes, and corrugated shaped pipes. Irregular steel pipes are divided into: outer hexagonal and inner circular steel pipes, outer hexagonal and inner hexagonal steel pipes, inner and outer hexagonal steel pipes, flat elliptical steel pipes, elliptical steel pipes, triangular pipes, L-shaped steel pipes, octagonal pipes, mushroom pipes, bread pipes, D-shaped pipes, concave pipes, convex pipes, umbrella pipes, P-shaped pipes, Yuanbao pipes, and other shaped steel pipes according to their shapes. The shape of irregular steel pipes is produced according to the needs of users.
