bar Weight (kg): Weight per meter = 0.00617 * diameter * diameter 
rebar weight (kg) = 0.00617 × × diameter was calculated diameter × length (rebar and the same round)   
square steel weight (kg) = 0.00785 × side edge width × length × width 
angle weight (kg) = 0.00785 × (edge width edge width + – edge thickness) × length × thick side 
plate weight (kg) = 7.85 × × thickness area 
flat weight (kg) = 0.00785 × thickness × width × length side 
copper plate weight (kg) = 0.0089 × length × width × thickness 
brass weight (kg) = 0.0085 × width × length × thickness 
aluminum weight (kg) = 0.00171 × width × length × thickness 
hexagonal weight (kg) = 0.0068 × width × pair of side edges width × length 
octagonal steel weight (kg) = 0.0065 × sides of the edge width × width × length of 
round copper rod weight (kg) = 0.00698 × diameter × length × diameter 
round brass rod weight (kg) = 0.00668 × diameter × diameter × length of 
round rod weight (kg) = 0.002 Diameter × 2 × D × L 
square copper rods weight (kg) = 0.0089 × side edge width × length × width 
square brass rod weight (kg) = 0.0085 × width × side edge width × length 
square rod weight (kg) = 0.0028 edge width × length × width × sides 
hexagonal copper rods weight (kg) = 0.0077 × sides of the edge width × width × length of
Brass rod weight (kg) = 0.00736 × edge width × length × width sides of 
the hexagonal rod weight (kg) = 0.00242 × sides of the edge width × width × length of 
round copper by weight (kg) = 0.028 × wall thick × (outer diameter – wall thickness) × length 
circular brass weight (kg) = 0.0267 × thickness × (outer diameter – wall thickness) × length 
circular tubes by weight (kg) = 0.00879 × thickness × (outer diameter – wall thickness) × length 

Note: the formula length in meters, the area in square meters, and the remaining units are mM