Unit Weight of Steel calculation

 Unit Weight of Steel calculation 



steel unit weight meaning 7850 kg /m3

Volume calculation

volume =𐍀/4 x d2x7850x one meter cutting length or d2/162

Nominal size of steel

4mm,5mm , 6mm, 8mm, 10mm, 12mm, 16mm , 20mm, 25mm, 32mm, 40mm.

Steel per meter length 

  1. 6mm =d2/162 = 0.222 kg
  2. 8mm =d2/162=0.395 kg
  3. 10mm = d2/162=0.617 kg
  4. 12mm = d2/162 = 0.888 kg
  5. 16mm = d2/162 = 1.58 kg 
  6. 20mm = d2/162 = 2.46 kg
  7. 25mm = d2/162= 3.85 kg
  8. 32mm = d2/162 = 6.32 kg
  9. 40mm = d2/162 = 9.88 kg
Full length weight of steel (one road maximum 12 m length)

  1. 6mm =d2/162 = 0.222 x 12 =2.64kg
  2. 8mm =d2/162=0.395 x 12 =4.74 kg
  3. 10mm = d2/162=0.617 x 12 =7.40 kg
  4. 12mm = d2/162 = 0.888 x 12 =10656kg
  5. 16mm = d2/162 = 1.58 x 12= 18.96 kg
  6. 20mm = d2/162 = 2.46 x 12 = 29.52 kg
  7. 25mm = d2/162= 3.85 x 12 = 46.2 kg
  8. 32mm = d2/162 = 6.32 x 12 = 75.84 kg
  9. 40mm = d2/162 = 9.88 kg = 118.56 kg
Tolerance factor of Steel 
  1. Up to 10mm +- 8 percent
  2. 10mm to 16mm +- 6 percent
  3. above 16mm +- 4 percent
IS code
  • For Steel testing IS Code 1786
  • For sample taken  IS code 10790( Part-2)
Scale of sample for physical and chemical test
  Lot is comping up to 50           = 2 sample taken
  Lot is coming 51 to 150            = 3 sample taken
  Lot is coming 151 to 500          = 5 sample taken
  Lot is above 500                        = 8 sample

Test:-
  1. tensile test
  2. Bend test
  3. rebend test




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