Gasket Weight

The Weight or Mass of a Gasket calculator computes the mass or weight of a gasket ring (e.g. circular gasket) based on the thickness, outer diameter, inner diameter and the mean density.  flattened ring

NOTE:  The default units have been updated to millimeters, and the default density has been provide for steel.  Additional density information in also provided below.

INSTRUCTIONS: Choose units and enter the following:

• (t) Thickness Ring or Gasket
• (d1) Inner Diameter
• (d2) Outer Diameter
• (mD) Density of Material (default: 7,850 kg/m³ for steel)

Gasket Mass or Weight (M): The calculator computes the mass of the gasket ring in grams.  However this can be automatically converted to any other mass and weight units (e.g. troy ounces) via the pull-down menu.

The Math / Science

The equation for the mass or mass of a gasket ring is the volume of a ring times the mean density as follows:

        `M = pi * t *[ (d_2/2)^2 - (d_1/2)^2] * mD`

where:

• M = mass or weight of ring or gasket
• t = thickness of ring
• d₁ = inner diameter
• d₂ = outer diameter
• mD = mean density of the material composing the ring (.e.g. 0.24 g/cm³ for the density of solid cork

Mean Density Table

Mean density is scientifically volume divided by mass.  There are  various unit for density adopted by cultures and industries. Common units for density included the following:

• kilograms per cubic meter (kg/m³)
• grams per cubic centimeter (g/cm³)
• grams per liter (g/L)
• pounds per cubic feet (lb/ft³)
• ounces per cubic inch (oz/in³)
• pounds per barrel (lb/bbl)
• pounds per bushel (lb/bu)

If you want to identify a material by its density, use the Density Within Range tool.