Company Details

  • Hejian Deris Petroleum Drilling Equipment Co.,Ltd.

  •  [Hebei,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Retailer , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:ISO9001, API, CE
  • Description:Non Magnetic Drill Collar,Api Standard Non-Magnetic Drill Collar,Non-Magnetic Oil Drilling Collar,Stainless Steel Non-Magnetic Drill Collar
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Non-magnetic Drill Collar

Product categories of Non-magnetic Drill Collar, we are specialized manufacturers from China, Non Magnetic Drill Collar, Api Standard Non-Magnetic Drill Collar suppliers/factory, wholesale high-quality products of Non-Magnetic Oil Drilling Collar R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
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API 7-1 Oilfield Non-magnetic Drill Collar

Model No. : 127.0mm

Hejian Deris Petroleum Drilling Equipment Co., Ltd supplies non-magnetic drill collar is made of a low-carbon high-chromium-manganese alloy steel. It is refined after a strict chemical composition and refined by forging to achieve its mechanical...

China Non Magnetic Drill Collar of with CE
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China Non-magnetic Drill Collar Suppliers

Non-magnetic Drill collars

Non-magnetic Drill Collar materials with low- strength (YDWC20-14) by combining a proprietary chemical analysis and a rotary hammer forging process with low magnetic permeability excellent machine ability.
Each Drill Collar is fully inspected by internal inspection dept. All data obtained are recorded on the inspection certificate furnished with each drill collar. API monogram, serial number, OD, ID, type and size of connections are stamped on recessed mill flats.
Drill collars are available in lengths from 10 to 31 feet and outside diameter from 31/8" to 11"


The non-magnetic drill collar is made of a low-carbon high-chromium-manganese alloy steel. It is refined after a strict chemical composition and refined by forging to achieve its mechanical properties. It has good low magnetic permeability and high strength. Mechanical properties, excellent intergranular corrosion resistance and excellent wear resistance. When the magnetic field strength is 1×105/4π A/m, the relative magnetic permeability μr of the non-magnetic drill collar is ≤1.010.

The non-magnetic drill collar has a magnetic induction intensity gradient of ≤0.05μT along the inner hole at any distance of 100mm.

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