Description

Drill Pipe

  

– Drill Pipes are strictly fabricated according to API 5D (for pipe body) and SPEC 7 (for tool joint)
– Connections are phosphatized or copperized in order to reduce the possibility of connection galling
– Hard banding will be provided if necessary  There are many kinds of hard banding that we can provide such as iron-matrix power Alloy, Arnco-100 XT
– Internal coating is provided in order to prolong its service life including TK34, TK34P, and DPC
– Press steel protectors are provided for pin and box tool joint
– API monogram can be used
– Packing mode: plastic frame system
Production Process of Drill Pipe

Pipe Body Friction Welding Induction Post-weld Heat-Treating Non-destructive Examination
Pipe Body Friction Welding Induction Post-weld Heat-Treating Non-destructive Examination
Standard Size and Connections of Drill Pipes
OD Grade Wall Thickness Upset Ends,forWeld-on ToolJoints(see note) Tool Joint
inch mm inch mm
2 7/8 73 E X G S 0 217 5 51 EU NC31
0 308 7 82 EU NC31 NC26
0 362 9 19 EU NC31
3 1/2 88 9 E X G S 0 254 6 45 EU NC38
0 368 9 35 EU NC38 NC40
0 449 11 4 EU NC38 NC40
4 101 6 E X G S 0 262 6 65 EU IU NC40 NC46
0 33 8 38 EU IU NC40 NC46
0 38 9 65 EU IU NC40 NC46
4 1/2 114 3 E X G S 0 271 6 88 EU IEU NC46 NC50
0 337 8 56 EU IEU NC46 NC50
0 43 10 92 EU IEU NC46 NC50
0 5 12 7 EU IEU NC50
0 55 13 97 EU IEU NC50
0 575 14 61 EU IEU NC50
5 127 E X G S 0 296 7 52 IEU NC50
0 362 9 19 IEU NC50
0 5 12 7 IEU NC50 5 1/2FH
5 1/2 139 7 E X G S 0 304 7 72 IEU 5 1/2 FH
0 361 9 17 IEU 5 1/2 FH
0 415 10 54 IEU 5 1/2 FH
6 152 4 E X G S 0 324 8 23 IEU 5 1/2 FH
0 38 9 65 IEU 5 1/2 FH
6 5/8 168 3 E X G S 0 33 8 38 IEU 5 1/2 FH
0 362 9 19 IEU 5 1/2 FH

Note
1 EU- External Upset; IEU- Internal & External Upset
2  Internal coating and hardbanding option upon order
Pup Joint
All pump joints are made from modified alloy steel heat-treated to a Brinell Hardness range of 285–341 with a Charpy V-Notch minimum impact strength of 40 ft-lbs at 70°F guaranteed to one inch below the surface  Connections can be cold rolled after machining, if requested  All connections are phos-coated to prevent galling during initial make-up
Nominal size: 3 1/2”OD ~ 6~ 5/8” OD, Length: 5′, 10′, 15′, 20′

Technical Specificatons fo Pup Joints
Nominal Size
A(in)
Tool Joint OD
B(in)
Tool Joint ID
in
Pin TJ Tong
C(in)
Box TJ Tong
D(in)
Conn
2-3/8 3-3/8 1-1/2 9 12 NC26
2-7/8 4-1/8 2-1/8 9 11 NC31
3-1/2 4-3/4 2-9/16 10 12-1/2 NC38
3-1/2 5 2-1/8 10 12-1/2 NC38
4 5-1/4 2-11/16 9 12 NC40
4-1/2 6-1/4 3 9 12 NC46
5 6-1/2 3-1/4 9 12 NC50
5 6-5/8 2-3/4 9 12 NC50
5 6-5/8 3-1/4 9 12 NC50
5-1/2 7-1/4 3-1/2 8 10 5-1/2 FH
5-1/2 7-1/2 3-1/2 10 12 5-1/2 FH
6-5/8 8-1/2 4-1/4 8 10 6-5/8 FH
6-5/8 8 5 8 10 6-5/8 FH