Tool Joints for Drill Pipe
USAI Forge product range includes Tool Joints for Drill Pipe & Heavy Weight Drill Pipe manufactured meeting the API Specifications 7-1.The Tool Joint forgings are manufactured in accordance to the International Standards and as per the requirements of the American Petroleum Institute (API), API Specification 7-1.
USAI Forge has a complete automated facility for Tool Joint Forgings and can supply the Tool Joints covering NC26 to 5 1/2” FH connections, 5-1/2”FH Connections and Double Shoulder (DS) High Torque Connections (HT) either in Forged, Blanked & Bored, Blanked Bored & Heat-treated, or Blanked Bored Heat-treated & Threaded (Finished) condition.
All API Tool Joint Connections as per API Specifications 7-1 can be supplied with different OD and ID combinations and with Standard Tong Space or Extra Long Tong Space.
NC26 (2 3/8” IF) NC31 (2 7/8” IF) NC38 (3 1/2” IF) NC40 (4” FH) NC46 (4” IF) NC50 (4 1/2” IF) 5 1/2” FHChemical Composition of the Tool Joint Material
C |
Si |
Mn |
P |
S |
Cu |
Ni |
Cr |
Mo |
Ca |
N |
|
4137 H Modified |
0.35 |
0.15 |
0.85 |
max. |
max. |
max. |
max. |
0.90 |
0.28 |
max. |
max. |
0.38 |
0.35 |
1.00 |
0.015 |
0.008 |
0.25 |
0.25 |
1.20 |
0.33 |
0.006 |
0.009 |
Mechanical Properties of Tool Joints for Drill Pipe
Yield Strength psi |
Tensile Strength psi |
Hardness BHN |
||
minimum |
maximum |
minimum |
||
Tool Joint |
1,20,000 |
1,65,000 |
1,40,000 |
285 - 341 |
Tool Joint Manufacturing Process |
 |
 |
 |
