API 7-1 P530 Non magnetic Drill collar for oil&gas downhole drilling The Non-magnetic drill collar is made of a kind of low carbon high chrome-manganese alloy steel, material normally is P530 or P550 or higher grades, which is refined after strict chemical composition ratio and forged to achieve its mechanical properties, this kind of drill collar has superb mechanical properties of low permeability and high strength. Mainly used for down hole directional drilling. Our Strict control of chemical composition and special forging process guarantee the excellent mechanical properties of our non magnetic drill collar. Special Treatment on ID: Roller Burnishing. (after roller burnishing, a comprehensive layer come into being) Advantages: Increase the corrosion resistance properties; Increase the surface hardness of bore up to HB400; Increase surface finish of bore to Ra 3.2m Test and inspection carried out on each bar during production : Chemical Composition; Tensile Test; Impact Test; Hardness Test; Metallographic Test (Grain Size); Corrosion Test (According to ASTM A262 Practice E); Ultrasonic Test over the whole length of the bar (according to ASTM A388); Relative magnetic permeability test; Hot Spot Test; Dimension Inspection, etc.
A. Slick Drill Collar Note: Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. The Drill collar are manufactured strictly from API Spec7-1 and SY5411 standard. B. Spiral Drill Collar Note: Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure. The drill collars are manufactired strictly according to API Spec7-1 and Standard SY5144 C. Spiral Drill Collar With Elevator Groove And Slip Groove Note: Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API SPEC7-1. Hardbanding is optional at customersâ?? requests. D. Non-magnetic Drill Collar The as cold rooled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress,corrosion,cracking and the mechanical performance is greatly enganced.
The as cold rolled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress, corrosion, cracking and the mechanical performance is greatly enhanced as required
It is made of high quality low-carbon-alloy steel. The raw material undergo a rigorous analysis of the chemical composition by forging, through the testing of mechanical properties of hardness, toughness , impact value and intergranular corrosion cracking performance in order to reach the requirement of standards, at the same time owning a good low permeability and mechanical processing performance . Magnetic permeability(mps=1íß105/4íta/m) Average¦u>r1.010 Magnetic field gradient¦í˜bín0.05ª8t It need to be discussed
Drilling Tool Luhai non-magnetic drill collars are made from non-magnetic materials with low-magnetic permeability. API monogram, serial number, OD,ID, type and size of connections are stamped on recessed mill flats. Magnetic Properties of Non-magnetic Drill Collar When MPS=1 105/4 A/m Relative magnetic permeability 1.1010 Magnetic Field Gradient B0.05 T
Non magnetic drill collar Made of AISI4145H alloy steel, drill collar mainly used between the dill pipe and drill head and connected by conversion connector so that they can provide the pressure and weighting to dill head ,in order to make the dill head to keep right trace . If order of inquiry please offer: Non magnetic drill collar outer diameter of dill collar handling features length of drill collar stress relief features drill collar bore connection type
Non magnetic drill collar Made of AISI4145H alloy steel, drill collar mainly used between the dill pipe and drill head and connected by conversion connector so that they can provide the pressure and weighting to dill head ,in order to make the dill head to keep right trace . If order of inquiry please offer: Non magnetic drill collar ·outer diameter of dill collar ·handling features ·length of drill collar ·stress relief features ·drill collar bore ·connection type
With a sole aim in delivering quality products, we are the prominent exporter of non-magnetic drill collar in beijing, beijing, china. Luhai non-magnetic drill collars are made from non-magnetic materials with low-magnetic permeability. Api monogram, serial number, od, id, type and size of connections are stamped on recessed mill flats.
Detailed Product Description drill collar 1)O.D: 2-3/8"-20" 2.Grade:J55 K55 N80 P110 ect 3.Thread :NU EU STC LTC BTC 4.Standard: API 5CT... drill collar Materials of the Non-magnetic drill collars are from chrome manganese, low carbon obtained by combining a proprietary chemical analysis and a rotary hammer process. The material is resistant to stress corrosion cracking, with high machine ability and no tendency to galling. Magnetic permeability (when MPS=1105/4Nm) relative max �¼r:1.010. Magnetic field gradient (hot spots) max: B 0.05micro tesla/100mm. Place of Origin Beijing, China (Mainland) Brand Name MTWK Model Number various Type Drill Collar Machine Type Drilling Tool Certification API Material Chromium Processing Type Forging Use Well Drilling Packaging Details standard export packing or according to seaworthy packing Delivery Time 30 days Supply Ability 100 Piece/Pieces per Month Details: Category Drilling Tool Certifications FOB Price Min Order 1 Piece/Pieces as your order Lead Time Port tianjin Terms L/C,T/T
