Pipe Section Properties Calculator
Hollow circular (pipe) section. D = outer diameter, t = wall thickness. ZZ = YY by symmetry.
Inputs:
Outputs:
Inner Diameter (d = D − 2t)
mm
Area (A = π(D²−d²)/4)
mm2
CG from Top / Bottom (= D/2)
mm
About ZZ axis (horizontal centroidal):
Moment of Inertia (IZZ = π(D⁴−d⁴)/64)
mm4
Radius of Gyration (rZZ)
mm
Neutral Axis from Top / Bottom (= D/2)
mm
Elastic Section Modulus (Ze,ZZ)
mm3
Plastic Section Modulus (Zp,ZZ = (D³−d³)/6)
mm3
About YY axis (= ZZ by symmetry):
Moment of Inertia (IYY = IZZ)
mm4
Radius of Gyration (rYY)
mm
Neutral Axis from Left / Right (= D/2)
mm
Elastic Section Modulus (Ze,YY)
mm3
Plastic Section Modulus (Zp,YY)
mm3