0.617 is round 10 rebar weight per meter.The weight of the bar is proportional to the square of the diameter (radius).
G/m = 0.617 * * D / 100 D
The weight of each meter (Kg) = the diameter of the steel bar (mm) x steel diameter (mm) x 0.00617.
Actually remember construction commonly used steel weight is simple from 6 = 0.222 Kg 6.5 = 0.26 Kg = 0.395 Kg phi phi 8 10 = 0.617 Kg phi 12 14 = 1.21 Kg = 0.888 Kg Φ Φ 16 = 1.58 Kg Φ 18 24 = 2.47 Kg = 2.0 Kg Φ Φ 22 = 2.98 Kg Φ 25 = 3.85 Kg Φ 28 = 3.85 Kg...
Φ under twelve (12) and Φ 28 (28) reinforced generally take three digits after the decimal point, Φ 14 to 25 reinforced Φ generally take 2 decimal places
Φ 6 = 0.222 Kg
Φ 8 = 0.395 Kg
Φ 10 = 0.617 Kg
Φ 12 = 0.888 Kg
Φ 14 = 1.21 Kg
Φ 16 = 1.58 Kg
Φ 18 = 2 kg
Φ 20 = 2.47 Kg
Φ 22 = 3 kg
Φ 25 = 3.86 Kg
Φ 28 = 4.83 Kg
Φ 32 = 6.31 Kg
Φ 36 = 7.99 Kg
Φ 40 = 9.87 Kg
The theoretical weight of steel is simplified.
Flat steel, steel plate, steel belt W = 0.00785 x width x thickness.
Square steel W = 0.00785 x side length 2.
Round steel, wire, wire W = 0.00617 x diameter 2.
Steel tube W = 0.02466 x wall thickness (outer diameter - wall thickness)
Equilateral Angle steel W = 0.00785 x edge thickness (2 edge width -- side thickness)
Unequilateral Angle steel W = 0.00785 x edge thickness (long edge width + short edge width - edge thickness)
W = 0.00785 * waist thick [high +f (leg wide - waist thick)]
Channel steel W = 0.00785 * waist thick [high +e (leg wide - waist thick)]