Structural steel pipe GB/T8162-2008 is mainly used for general structure and mechanical structure. Its representative materials (brands): carbon steel 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
Structural steel pipes (GB/T14975-2002) are hot-rolled (extruded, expanded) and cold-rolled (extruded, expanded) and cold-rolled stainless steels made of corrosion-resistant pipes and structural parts and parts used in chemical, petroleum, textile, medical, food, machinery and other industries. Drawing (rolling) seamless pipe.
Structural steel pipe is a kind of seamless steel pipe divided into different uses.
Calculation method of structural steel pipe☆
The weight of structural steel pipe = 0.25×π×(outer diameter squared-inner diameter squared)×L×steel specific gravity
Among them: π = 3.14 L = length of structural steel pipe, the proportion of steel is 7.8
Therefore, the weight of the structural steel pipe = 0.25 × 3.14 × (outer diameter squared-inner diameter squared) × L × 7.8 * If the unit of measurement is in meters (M), the calculated weight is kilograms (Kg)
