Question

Dear All, Please share the formula to find the volume of metal sheet used in a Hollow cylinder ...

Answer 1

Volume
V = π×h×(R² − r²) = π × h × (D² − d²) ⁄ 4
Surface to volume ratio
SA:V = 2 × (R − r + h) ⁄ (h × (R − r))
Surface Area (SA), Outer Lateral
lS = 2×π×R×h
Surface Area (SA), Inner Lateral
ls = 2×π×r×h
Surface Area (SA), Total Lateral
l = lS+ls = (2×π×R×h)+(2×π×r×h)  =  2×π×h×(R+r)
Surface Area (SA), Base
B = π × (R² − r²)
Surface Area (SA), Total
A = 2 × B + l  = (2 × π × (R² − r²)) + (2 × π × h × (R + r))  =  2 × π × (R² − r² + h × (R + r))  =  2 × π × (R+r) × (R − r+h)
Outer diameter
D = 2×R
Inner diameter
d = 2×r
Outer radius
R = D ⁄ 2
Inner radius
r = d ⁄ 2
Base outer perimeter
P = 2×π×R
Base inner perimeter
p = 2×π×r

Answer 2

thanks....

Answer 3

but........I want to information.......about volume of Metal used in a Hollow cylinder.......

Answer 4

What you want is the volume of the metal sheet, essentially the ring.
So take the difference between the volume of the external cylinder and the internal one

Answer 5

Cut the cylinder along its height.
It becomes an open sheet.
area = pi*d*h
vol=pi*d*h*thickness.

That is the amount of material is present.

Note:
25.4mm=1.0"
10mm=1*10/25.4=0.3936"