API Thread 2 7/8" DTH Drill Pipe Mining Drill Rods For Blast Hole
Drilling Rig Machine
We mainly produces rock-drilling tools for mining, constriction,
tunneling, quarrying and related industrials. We can specially
design and manufacture according to client inquiry is available.
drill rods are made from the same steels as 64 bar, produced by CNC
machine and advanced heat treatment. Besides, in order to make sure
that the MF drill rod has a long lifespan, we use friction welding
technology to connect the rod boy and female thread, which can make
sure the female thread not be damaged easily.
We are able to supply the full range of drill rods in different
lengths with various threads as below.
API Rotary Drill Pipe - Air Mud Rotary
DPI's Drill Pipe is manufactured from premium-quality USA Steel. We
utilize precision manufacturing techniques, coupled with our
experience and expertise to deliver you the Industry's Best Drill
Pipe. We take pride in each string of Drill Pipe, and offer our
recommendations in the Drill Pipe's characteristics that match your
application.
We utilize advanced Inertia Welding Technology, producing the
strongest bond from tubing to tool joint that is available. We
utilize our CNC machining centers to craft the tool joints, and our
Heat Treating Enhancement Technology to maximize durability,
strength, and wear life to the Pipe. The Drill Pipe is available in
Flush Joint, Upset Joint, and Upset Tube Designs.
DPI has the capability of manufacturing Drill Pipe in a wide range
of configurations, as all aspects of the manufacturing process are
accomplished at our facility. This allows us to satisfy your
configuration requirements, even if considered unusual.
Upset Tube Designs are available in Internal Upset (IU), External
Upset (EU), and Internal External Upset (IEU).
Reference our Recommended Thread Profile - Wall, and Grade Chart to
view our range of alternatives, or just give us a call to discuss
your specific requirements.
Our Drill Pipe comes in all Grades; Grade "D", "E", "X", "G", "S".
Our Tool Joints are manufactured to API Standards.
Break-Out Flats and/or Break-Out Lugs are offered in many different
configurations, from OEM to Custom design.
API Drill Pipe Range:
| Pipe OD | Wall Thickness | Lengths | Threads |
| 2 3/8" | .190, .254, .280 | 2'-30' | 2IF, 2 3/8 Mayhew Junior, 2 3/8 Mayhew Regular, |
| 2 3/8IF |
| 2 7/8" | .217, .276, .362 | 2'-30' | NWJ, 2 3/8 Mayhew Junior, 2 3/8 Mayhew Regular, |
| 2 3/8IF, 2 7/8IF |
| 3" | .156, .188, .250, .375 | 2'-30' | 2 3/8 Mayhew Junior, 2 3/8 FEDP, |
| 2 3/8 API Regular |
| 3 1/2" | .219, .250, .368, .449 | 2'-30' | 2 3/8 API Regular, |
| 2 7/8 API Regular, |
| 2 3/8IF |
| 4" | .226, .262, .330, .380 | 2'-45' | 2 7/8 Reg, 2 7/8IF, |
| 3 1/2 Regular |
| 4 1/2" | .250, .290, .337, .430 | 2'-45' | 2 7/8IF, 3 1/2 Regular, 3 1/2IF, |
| 4 1/2 XH, 4 1/2IF |
| 4 3/4" | 0.375 | 2'-20' | 3 1/2IF |
| 5" | .362, .476 | 2'-45' | 3 1/2 Regular, |
| 3 1/2IF |
| 5 1/2" | .361, .415 | 2'-45' | 3 1/2IF, 4FH, 4IF, |
| 4 1/2 Regular |
| 6" | .250, .313,.375 | 2'-20' | 4 1/2 Reg, 4IF |
| 6 5/8" | .288, .352, .417 | 2'-45' | 4 1/2IF, 8 FF |
| 7" | .362, .417, .453, .498 | 2'-45' | 4 1/2IF, 8 1/2FF |
| 7 5/8" | .375, .500 | 2'-45' | 5 1/2 FH, 8 1/2FF |
Rotary Pipe Wall and Grade Alternatives:
| Thread Profiles | Recommended OD | Recommended ID |
| 2 IF | 2.375" | 1.000" |
| 2 3/8 Mayhew Junior | 2.750" | 1.500" |
| 2 3/8 FEDP | 3.000" | 1.500" |
| 2 3/8 API Regular | 3.000" | 1.000" |
| 2 3/8 Mayhew Regular | 3.250" | 1.625" |
| 2 3/8 IF | 3.375" | 1.750" |
| 2 3/8 American Open Hole | 3.500" | 1.813" |
| 2 3/8 AOH Mod | 3.500" | 2.063" |
| 2 7/8 API Regular | 3.500" | 1.250" |
| 2 7/8 FEDP | 3.750" | 1.750" |
| 2 7/8 Mayhew Full Hole | 3.875" | 1.875" |
| 2 7/8 IF | 4.125" | 2.125" |
| 3 1/2 API Regular | 4.250" | 1.750" |
| 3 1/2 Full Hole | 4.625" | 2.438" |
| 3 1/2 IF | 4.750" | 2.688" |
| 3 1/2 XH | 4.750" | 2.438" |
| 4 Full Hole | 5.250" | 2.813" |
| 4 IF | 5.750" | 3.250" |
| 4 1/2 API Regular | 5.500" | 2.250" |
| 4 1/2 IF | 6.126" | 3.750" |
| 6 5/8 API Regular | 7.750" | 3.500" |
| 5 1/2 IF | 7.375" | 4.813" |
| 6 5/8 Full Hole | 8.000" | 5.000" |
| 8 1/2 Full Flow | 8.500" | 5.500" |
| 7 5/8 API Regular | 8.875" | 4.000" |
| 8 5/8 API Regular | 10.000" | 4.750" |
Advise us on your typical application, and we can recommend Wall
and Grade to match your needs.
Mid Body Steel Alternatives
| Grade | Min Yield | Min Tensile |
| E-75 | 75,000 PSI | 100,000 PSI |
| X-95 | 95,000 PSI | 105,000 PSI |
| G-105 | 105,000 PSI | 115,000 PSI |
| S-135 | 135,000 PSI | 145,000 PSI |
Pictures
