American Sinker Bars are manufactured from the finest quality,
hot-rolled, cold-drawn carbon or alloy steel bar stock.

The hot-rolled, cold drawn carbon or alloy steel bar stock, in concert with an advanced pin design, permits these sinker bars to improve the overall fatigue strength and service life in the toughest, most demanding, rod-pumped artificial lift applications.

Hot rolled, cold drawn bar stock improve the mechanical properties, surface integrity, and dimensional accuracy, tolerance and shape of American Sinker Bars over sinker bars available from other manufacturers who don’t use the cold drawn method. Some of these benefits include:

By cold drawing the bar prior to manufacturing, it is possible to increase the yield strength of the steel bar stock while keeping the diameter, straightness and out-of round tolerance more consistent and without much increase in the tensile strength or hardness of the sinker bar. The overall result of the hot rolled, cold drawn material and advanced pin design is a sinker bar with increased fatigue endurance, strength, toughness and an improved surface finish on the O.D.; which removes irregularities that may otherwise result in abrasion and wear to your production tubing.