Oil Drilling Lift Subs
OCTL Lift Subs are made from AISI 4140/ 4145H modified alloy steel, fully heat treated to a Brinell Hardness range of 285 - 341 and have an IZOD impact strength of minimum 40 ft-lbs. The connections are machined, cold rolled, and phosphatized to prevent galling during initial make-up, and are shipped with pressed steel thread protectors installed.
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in section "Locks for drilling pipes"
View also products categories "Mining and drilling equipment"