Intergral blade stabilizer:
Our integral blade stabilizers are manufactured from single bar of AISI 4145H modified steel.Professional forging process guarantee that mechanical properties meet API Spec 7-1.Hardness range of 285-341HB and a charpy v notch impact value of 54joules are guaranteed one inch below the surface.Shenlong employs inserted button as hard facing.
Non-magnetic stabilizer:
The material is chrome manganese stainless steel.High quality is achieved by two process,material choosing and material inspection.
During steel making,chemical components are seriously controlled.The most important process to make our non-mag products outstanding is forging process.Professional forging techniques assure the mechanical properties of our non-mag products meet API standard.
All materials have been ultrasonic tested within the whole length to make sure there is no crack inside.
We cooperate with the National Institute of Metroloty P.R.China in measurements of relative magnetic permeability.And our non-mag products have a relative magnetic permeability less than 1.010.
We refer to GB4334.5-2000.ASTM.A262,ASTM.A276 when doing corrosion resistance experiments and we can reach the best condition.
Our integral blade stabilizers are manufactured from single bar of AISI 4145H modified steel.Professional forging process guarantee that mechanical properties meet API Spec 7-1.Hardness range of 285-341HB and a charpy v notch impact value of 54joules are guaranteed one inch below the surface.Shenlong employs inserted button as hard facing.
Non-magnetic stabilizer:
The material is chrome manganese stainless steel.High quality is achieved by two process,material choosing and material inspection.
During steel making,chemical components are seriously controlled.The most important process to make our non-mag products outstanding is forging process.Professional forging techniques assure the mechanical properties of our non-mag products meet API standard.
All materials have been ultrasonic tested within the whole length to make sure there is no crack inside.
We cooperate with the National Institute of Metroloty P.R.China in measurements of relative magnetic permeability.And our non-mag products have a relative magnetic permeability less than 1.010.
We refer to GB4334.5-2000.ASTM.A262,ASTM.A276 when doing corrosion resistance experiments and we can reach the best condition.
Specifications
- hole size range(in)
- from 4 3/4 to 28
- drill collar OD range(in)
- from 3 3/4 to 10
- bore(in)
- from 1 1/2 to 3
- overall length (in)
- from 62 to 95
- blade length(in)
- from 10 to 20
Features
- meet the API standard
- We manage our production line and inspection as per the requirement of API
Certificate
- supply API standard products and services
Main Products
drill collar,drill pipe,stabilizer,drill stem subs,kelly