Torque

ft·lb, N·m, kg·m.

1 ft·lb = 1.35582 N·m

Makeup torque for tubular connections is specified in ft·lb (US) or N·m (metric). 1 ft·lb = 1.35582 N·m.

1 ft·lb1.35582 N·m
1 N·m0.73756 ft·lb
1 kg·m9.80665 N·m

Torque on the rig

Tubular connections — drill pipe, casing, tubing — are made up to a specified torque so they seal and hold without galling. US specs use foot-pounds (ft·lb); metric specs use newton-meters (N·m). The conversion is 1 ft·lb = 1.35582 N·m.

Getting makeup torque right is a safety and integrity issue: under-torqued connections can back off downhole, while over-torqued ones can yield or split.

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