Shenlong's non-mag products include non-magnetic drill collar and non-nagnetic stabilizer.The material is chrome manganese stainless steel. High quality is achieved by two process. First, material choicing. Then, material testing.
Material choicing
When steel making, phosphorus and sulfur are strictly controlled. Professionaly forging techniques assure the mechanical properties meet with the API standard.
Material testing
All materials have been ultrasonic tested within the whole length to make sure there is no crack inside.
Material choicing
When steel making, phosphorus and sulfur are strictly controlled. Professionaly forging techniques assure the mechanical properties meet with the API standard.
Material testing
All materials have been ultrasonic tested within the whole length to make sure there is no crack inside.