API 7-1 Non Magnetic tools for Directional Drilling

2020-10-30 16:00:53 ord46505246

Tiptop specializes in providing all kinds of non-magnetic tools for directional drilling, such as non magnetic drill pipe, non magnetic drill collar, non magnetic stabilizer and downhole motor. All the products we supply are manufactured according to related industry standards, such as API specification. 

Take non magnetic stabilizer for example, our integral type non magnetic stabilizer is made from one solid forging of non magnetic steel. The material is high purity Chromium Manganese Austenitic stainless steel.

Ultrasonic inspection and MPI inspections are performed on each forging over its full length and section, after rough machining according to API Spec 7-1. Mill test certificates including mechanical properties, chemical analysis, magnetic properties and inspections are supplied with all stabilizers.

We have the capacity to produce Non Magnetic Stabilizer up to Crown OD 26’’, each of our non magnetic tools is tested according to ASTM A262E practice,in order to make sure there is no intergranular corrosion.

Chemical composition&Mechanical properties

P 530 non magnetic material















Reduction of area


Impact  energy


Hardness Brinell

[min]260-350 HB
(1”below surface)

Magnetic properties

≤    1,001

Relative permeability

The specification and length of each products can be customized according to customer’s requirements.

 If you are in need of any non magnetic tools , pls free free to contact us!