Heavy Weight Drill Pipe – API 7-1 / 7-2

Wide range of API Heavy Weight Drill Pipes, manufactured from AISI 4145H Alloy Steel, fully heat treated, all physical properties conform with API Spec 7-1 latest edition. .

Specifications: API SPEC 7-1

  • Available sizes: O.D. 3 1/2” ~ O.D. 6 5/8”.
  • Features - Hard Banding : These can be according customer’s requirement
  • Features  - Internal Coating : These can be according customer’s requirement
  • Protection: Thread storage compound, with plastic thread protector installed.

Note: (high strength mechanical properties and outstanding resistant to stress corrosion cracking and resistant to galling.)

Technical specifications and parameters
Size ID Tool joint OD Tool joint ID Connection Type Max. elevator dia. Central upset dia. Min. drift dia.
3 1/2" 2 1/4" 4 3/4" (4 7/8", 5") 2 1/4" NC38 3 7/8" 4" 2"
2 1/16" 2 1/16" 1 13/16"
4" 2 1/2" 5 1/4" 2 1/2" NC40 4 3/16" 4 1/2" 2 1/4"
2 9/16" 2 9/16" 2 5/16"
4 1/2" 2 11/16" 6 1/4" 2 11/16" NC46 4 11/16" 5" 2 7/16"
2 3/4" 2 3/4" 2 1/2"
2 13/16" 2 13/16" 2 9/16"
5" 3" 6 5/8" 3" NC50 5 1/8" 5 1/2" 2 3/4"
5 1/2" 3 1/4" 7" (7 1/4", 7 1/2") 3 1/4" 5 1/2" FH 5 11/16" 6" 3"
3 3/8" 3 3/8" 3 1/8"
3 7/8" 3 7/8" 3 5/8"
4" 4" 3 3/4"
6 5/8" 4" 8" (8 1/4", 8 1/2") 4" 6 5/8" FH 6 15/16" 7 1/8" 3 3/4"
4 1/2" 4 1/2" 4 1/4"
5" 5" 4 3/4"

More information available on request.

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