Input data

 Nominal diameter of the screw thread d_{N}


mm

 Thread pitch P_{h}


mm

 Pitch diameter of the screw thread d_{2}


mm

 Root diameter of the screw thread d_{3}


mm

 Neck diameter for the neckeddown bolts d_{T}


mm

 Outer diameter of the bolt head or nut d_{w}


mm

 Throughhole diameter d_{h}


mm

 Half angle of the thread β/2_{}


°

 Minimum yield strength of the bolt material R_{p0,2}


N/mm²

 Minimum gasket/flange force per bolt F_{VM min}


kN

 Maximum gasket/flange force per bolt F_{VM max}


kN

 Friction coefficient combinations:

 Combination number _{}






 Friction coefficient for the screw thread μ_{G}






 Friction coefficient for the joint face μ_{K}






 Comment _{}










Calculation

 Combination number _{}






 Allowable bolt tensile stress σ_{M all}





 N/mm²

 Tensile stress for minimum gasket force σ_{M min}





 N/mm²

 Tensile stress for maximum gasket force σ_{M max}





 N/mm²

 Allowable stress intensity for bolt σ_{V all}





 N/mm²

 Stress intensity for minimum gasket force σ_{V min}





 N/mm²

 Stress intensity for maximum gasket force σ_{V max}





 N/mm²

 Stress efficiency for minimum gasket force _{}





 %

 Stress efficiency for maximum gasket force _{}





 %


Results

 Combination number _{}






 Allowable bolt tensile force F_{VM all}





 kN

 Allowable bolt tightening torque M_{A all}





 N·m

 Tightening torque for minimum gasket force M_{A min}





 N·m

 Tightening torque for maximum gasket force M_{A max}





 N·m
