Gasket & Bolt Load Calculator

Calculate gasket seating loads, bolt preload, and minimum bolt torque for flanged joints.

Outer diameter of the gasket seating surface.
mm
Inner diameter of the gasket seating surface.
mm
Min seating stress. Compressed fiber ~11 MPa, spiral wound ~69 MPa, metal ring ~124 MPa.
MPa
Total number of bolts in the flange bolt circle.
Nominal bolt diameter. Common: M12, M16, M20, M24.
mm

Results

Gasket Area-mm²
Required Seating Load-kN
Preload per Bolt-kN
Bolt Tensile Stress-MPa
Minimum Bolt Torque-Nm
References: ASME PCC-1 — Bolted Flange Joint Assembly, ASME B16.20 Gaskets.