What is Steel or metal regular octagon bar unit weight calculator?
The bar whose cross section is a regular polygon and all eight sides and interior angles with 135° are equal is called regular octagon bar.
Steel or metal octagon bar unit weight calculator, calculates weight per meter length and total length, single bar cross section area and total bar cross section area, single bar per meter volume, and total volum after input of regular octagon inner dia in mm, length in meter, and density of metal in Kg/Cum. In this Soved’s calculator, we can calculate unit weight and total weight any metals/non metals like as Brass, Steel, Aluminium, Copper, Wood balli, Silver, and Zinc etc with all input data. Here some metals densities are written below-Steel density- 7850-7860Kg/Cum
Aluminium density- 2640-2830Kg/Cum
Brass density- 8400-8890Kg/Cum
Copper density- 8800-8990Kg/Cum
Example-1: Calculate unit weight, unit area, unit volume, and total weight, total area, total volume of brass regular octagon bar with 20mm inner dia and 3m length with 2nos of bar. Take density of brass 8400Kg/Cum.
Solution:
For unit weight,
Brass bar inner dia,d= 20mm
Brass bar unit length,l= 1m
Brass density,p= 8400Kg/Cum
Brass bar unit weight= Brass bar unit volume*Brass density
Brass bar unit weight= 2*(√2-1)*d*d*0.001*0.001*l*p
Where, √2-1= 0.4142, d= 20mm, l= 1m, p= 8400Kg/Cum
Brass bar unit weight= 2*0.4142*20*20*0.001*0.001*1*8400
Brass bar unit weight per meter=2.783Kg
For total weight,
Brass bar inner dia,d= 20mm
Total no of Brass bar,n= 2
Brass bar length,l= 3m
Brass density,p= 8400Kg/Cum
Brass bar total weight= Brass bar total volume*Brass density
Brass bar total weight= 2*(√2-1)*d*d*0.001*0.001*l*p*n
Where, √2-1= 0.4142, d= 20mm, l= 3m, p= 8400Kg/Cum, n= 2
Brass bar total weight= 2*0.4142*20*20*0.001*0.001*3*8400*2
Brass bar total weight=16.700Kg
For unit cross section area,
Brass bar inner dia,d= 20mm
Brass bar unit cross section area in mm²= 2*(√2-1)*d*d
Where, d= 20mm √2-1= 0.4142
Brass bar unit cross section area= 2*0.4142*20*20
Brass bar unit cross section area=331.360mm²
For total cross section area,
Brass bar inner dia,d= 20mm
Total no of bar,n= 2
Brass bar total cross section area in m²= 2*(√2-1)*d*d*0.001*0.001*n
Where, d= 20mm, n= 2, √2-1= 0.4142
Brass bar total cross section area= 2*0.4142*20*20*0.001*0.001*2
Brass bar total cross section area=0.000663m²
For unit volume per meter,
Brass bar inner dia,d= 20mm
Brass bar length,l= 1m= 1000mm
Brass bar unit volume per meter in mm³= 2*(√2-1)*d*d*l
Where, d= 20mm, l= 1000mm, √2-1= 0.4142
Brass bar unit volume per meter in mm³= 2*0.4142*20*20*1000
Brass bar unit volume per meter =331360.00mm³
For total volume,
Brass bar inner dia,d= 20mm
Brass bar length,l= 3m
Number of Brass bar,n= 2
Brass bar total volume in m³= 2*(√2-1)*d*d*0.001*0.001*l*n
Where, √2-1= 0.4142, d= 20mm, l= 3m, n=2
Brass bar total volume in m³= 2*0.4142*20*20*0.001*0.001*3*2
Brass bar total volume=0.00199m³
Short formula for Steel regular octagon bar unit weight.
Suppose inner dia of bar in mm= d
Unit length of bar in meter= 1
Steel density in Kg/cum= 7850
Steel unit weight in Kg/meter= ?
So, Steel weight= steel volume*steel density
Steel unit weight in Kg/meter= 2*(√2-1)*d²*0.001*0.001*1*7850
Steel unit weight in Kg/meter= 2*0.04142*d²*0.001*0.001*1*7850
Steel unit weight= d²/153.777~ d²/153.8 Kg/m
Steel unit weight per meter= d²/153.8 Kg
Where d in mm