Products
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Drill Collars
Drill collar as one component of a drill string is extremely industrial tubulars used to drill into ground to provides weight on bit for drilling. It is used to conjunction with drill pipe. There are slick and spiral grooved types mainly. Our manufacturing process is certified to API spec 7-1. The drill collar is made of AISI 4145 H or 4145 H Modified alloy steel. Bores are trepanned from one direction with no mismatch. All drill collars are heat-treated with hardness within 285 to 341 BHN, w... -
Heavy Weight Drill Pipe
Integral heavy weight drill pipe is the transition zone between drill collar and drill pipe. It can not only reduce stress-formation in the connection of drill collar and drill pipe, but also reduce the wear on OD. Integral heavy weight drill pipe is made from one piece of AISI 4145H solid bar, fully heat treated, all physical properties conform to API spec7 latest edition. HWDP’s wear resistance hard banding is standard on tool joints connections and central upset. The types of hard banding ... -
Tubing and Casing Coupling
Casing coupling is a short pipe applied in connecting two casing pipes which have threads. The pipe coupling has internal threads machined to match the external thread of the long joints of casing. The two joints of casing pipes are screwed into opposite ends of the casing coupling. Through their strength can be normally made of the same grade of steel as the casing. All casing couplings are manufactured in accordance with API 5CT specification of the latest edition. Properties of Casing Coup... -
Alloy Seamless Pipe
OD:6-720MM WT:0.5-120MM Length:3-16M Application:Petroleum, Chemical Engineering, Electricity, Boiler Standard:ASTM A335/A335M, ASTM A213/213M, DIN17175-79, JIS3467-88,GB5310-95 Material:P5,T5,P11,P12,STFA22, P22, T91, T9,WB36 Alloy pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is much ... -
Alloy Welded Pipe
OD:6-720MM WT:0.5-120MM Length:3-16M Application: Construction Hall Structure, Sea Trestle, Airport Structure, Shipbuilding, Security Door Frames, Garage Doors, Strengthening Liners of Steel Doors and Windows, Indoor Partition Walls, Cable Bridge Structures and Expressway Safety Guards, Balustrade, Decorating, Residential, Ornamental Pipes Agriculture： Agricultural Equipment Industry Machinery, Solar Stent, Offshore Oil Field, Mine Equipment, Electromechanical Hardware, , heavy engineering,... -
ASTM A519 Steel Pipe
This pipe covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing t...