Drill Collar - Modified Aisi 4145h Chromium Molybdenum Alloy Steel, Od 79.4-279.4mm | Api Specifications, Full-length Heat Treated, Certified Mechanical Properties

We are instrumental in providing to our valuable customers excellent quality Drill Collar which is available with following specification:-
1.Low carbon steel,stainless steel,etc
2.OD:79.4-279.4mm
3.Factory directly
4.Timely delivery
5.API Spec.

The drill collars are made of modified AISI 4145H chromium molybdenum alloy steel. These drill collar bars are full-length heat treated and water quenched to obtain ASTM A-370 mechanical properties. Full mechanical and chemical mill test certifications are supplied with all drill collars. These mill test certifications guarantee a hardness range of 285 to 341 BHN and an impact value of 40 ft.-lbs. at room temperature one inch below the surface.

To ensure close tolerance bores, all drill collar bars are trepanned then drifted to API specifications. Bar surface finish is a as rolleda which is original mill finish.

Clients can avail this Drill Collar at industry leading prices from us.