Tips and Notes

Torque calculation ASTM 193 Stud‎‏ Bolts

The given torque values ​​are approved for ASTM 193 Grade B7 and B16 stud bolts used with spiral wound graphite gaskets, where the original thickness of the SPW gasket is approximately 4.5 mm and is compressed to approximately 3.2 mm.

CAUTION: exercise caution when applying formulas for torque/tension relationships. Torque is only an indirect indication of tension. Overtightening or overtightening fasteners can lead to costly equipment failure and/or personal injury.