Flange Weight Calculator

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How Do You Calculate Flange Weight?
The weight of a pipe flange depends on the material used in construction of the flange. It can also affect the pressure that the flange can handle. For example, if 304 ss is used for constructing the flange, then
Volume of pipe flange= π/4*(A1*A1-B1*B1-D1*C1*C1)*C(mm)
Density of 304ss = 7.93/1000000 Kg/cm^3
Therefore, weight = (A1*A1-B1*B1-D1*C1*C1)*C*π/4*7.93/1000000(kg)

  • Outer diameter: A1
  • Inner diameter: B1
  • Thickness of the sheet: C
  • Number of drill holes: D1
  • Diameter of drill hole: C1

How Is Welding Neck Flange Weight Calculated?
The Welding Neck Raised Face Flange is the most popularly used flange among all. The weight calculation for it is divided into two parts. One includes the short length of the pipe and the other is the truncated cone which gets deducted by the cylinder. Adding the two up, will give the weight of the weld neck raised face flange.
Formula 1: W =[(A1*A1-B1*B1-D1*C1*C1)*C+(X*X-A*A)*H]*6.228/1000000
Formular 2: W=[(A1*A1-B1*B1-D1*C1*C1)*C-(A1*A1-X*X-D1*C1*C1)*H]*6.228/1000000

  • The diameter of the hub at the start of the weld neck flange: A
  • The root diameter of the hub: X
  • Total number of bolts: n
  • The overall length that goes through the hub: H

How Do You Calculate The Area Of A Flange?
The formula to Calculate The Area Of A Flange is (3.142/4)*((o.d sq.- i.d sq.)*1.1)

Weight of finished part: 0 kg