Angle steel: weight per meter =0.00785* (side width+side width-side thickness) * side thickness

Round steel: weight per meter =0.006 17* diameter * diameter (rebar is the same as round steel).

Flat steel: weight per meter =0.00785* thickness * side width.

Pipe: weight per meter =0.02466* wall thickness * (outer diameter-wall thickness)

Plate: weight per meter =7.85* thickness

It's easier to weigh, just weigh it-empty car weight.

Weighing is the actual weight of steel, and adjustment is the theoretical weight.

If you buy a steel plate with a thickness of 50mm, a width of 1200mm and a length of 10000mm, it is calculated as 0.05* 1.2* 10*9.8= steel plate weight. But according to our national standard, the allowable fluctuation difference of steel may actually be only 49.2. Generally speaking, steel plates, steel pipes and I-beams are all adjusted, while coiled plates such as color steel plates and galvanized plates are all weighed.

The conversion between the weighed price and the adjusted price is calculated according to the lower tolerance, for example, the tolerance below the length is cheaper than 100mm in 200 yuan and 150mm in 240 yuan.