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Stabilizer Hardfacing type available:HF1000, HF2000, HF3000, HF4000, HF5000 Material: AISI 4145H, AISI 4145H MOD Alloy Steel, AISI 4140-4142, AISI 4340, Non-magnetic. Stabilizer Specification: OD: 4 1/8"-- 42" Non-magnetic: 5"--17 1/2" Stabilizer Detail: Stabilizer are Made from premium chrome molyB dense alloy steel heat treated by special procedure and obtain expected hardness, strength and impact value properties. All threads are made strictly in accordance with API specification. The ha
Drill Collar The drill collars are made of 4145H modified chromium-molybdenum alloy steel according to API Spec.7 and SY/T5144-1997. Standard:SY/T5144-1997 and API 7-1 Material: AISI 4145 H Drill Collar Application: All threads can be phosphated, copperised or cold worked. All threads are machined with CNC Lathes-Double-shouldered and a special thread, the max diameter of drill collar is 14 inch.
Non-magnetic Drill Collar The Non-magnetic drill collar is made from a kind of low carbon high chromium manganese steel alloy. It is refined and forged after strict chemical component ratio to reach its mechanical property. It has low magneto conductivity, high-strength mechanical property, good Intergranular corrosion cracking resistance property and outstanding wear resistance Standard: PAPI Spec.7 and SY/T5144
Spiral Drill Collar Three right-handed spiral grooves are machined on the outside cylindrical surface of the round drill collar to reduce the contact area with the well wall and to reduce the rotating resistance so that the differential pressure sticking can be prevented effectively. Spiral Drill Collar Standard: SY/T5144-1997 and API 7-1 Material: AISI 4145 H Spiral Drill Collar Detail The spiral drill collar is 4% lighter than the round drill collar of the same size. The shape of the both
Kelly Bar Detail: Kellys are made from 4145H modified alloy steel in accordance with API Spec.7-1 latest edition, which are quenched and tempered along full length. A hardness range of 285 to 341 BHN and a minimum impact value of 54 Joules as per ASTM A 370 Charpy-V, these values are guaranteed one inch below the surface. Kelly bars are inspected by an ultrasonic unit. Over their full length and full section. The wall thickness of each flat of the drive section is verified ultrasonically on eac