API 5DP Drill Pipe Manufacturer & Supplier – ELITE
G105 Drill Pipe
S135 Drill Pipe
E75 Drill Pipe
X95 Drill Pipe
2-3/8″ to 6-5/8″
Sour Service Drill Pipe
Factory Direct Supply.OEM Manufacturing.
Contact ELITE engineers to obtain the inventory list and pricing.
In oil and gas drilling, drill pipe is an essential component of the drill string. API-certified drill pipes play a critical role in transmitting both torque and drilling fluid from the surface to the drill bit. For drilling contractors, oil companies, and rig equipment suppliers, understanding the specifications, thread types, and weight of API drill pipe is vital for operational efficiency and safety.
- Grades: E75 / X95 / G105 / S135
- Standard: API Spec 5DP
- Heat Treatment: Full-length
- Inspection: UT, dimensional, MTC
Related:
Heavy Weight Drill Pipe ·
Drill Collars
What is API Drill Pipe?
API Drill Pipe refers to drill pipe manufactured according to the American Petroleum Institute API 5DP standards(PSL-1, PSL-2, PSL-3, NS-1),Some of the customers need to meet the DS-1 testing standards.These pipes are designed for strength, durability, and interchangeability across global drilling operations. API standardization ensures compatibility across different rigs and service providers.
what threads are on oil drill pipe？
Drill pipe threads are essential for secure and leak-free connections between pipe sections and drilling tools. The tool joints (ends of the drill pipe) are typically threaded with API connections, designed for fast make-up and durability under high-stress conditions.
| API Connection Types | Threads Per Inch (TPI) | Pin Nose Outer Diameter (mm) | Box Shoulder Inner Diameter (mm) |
| NC26=23/8″IF | 4 | 60.35 | 74.61 |
| NC31=27/8″IF | 4 | 71.31 | 87.71 |
| NC38=31/2″IF | 4 | 85.06 | 103.58 |
| NC40=4″FH | 4 | 89.06 | 110.33 |
| NC44 | 4 | 98.42 | 119.06 |
| NC46=4″IF | 4 | 103.73 | 124.61 |
| NC50=41/2”IF | 4 | 114.30 | 134.91 |
| NC56 | 117.50 | 150.81 | |
| NC61 | 4 | 126.60 | 165.10 |
| NC70 | 4 | 147.65 | 187.33 |
| NC77 | 4 | 161.85 | 204.79 |
| 2 3/8″REG | 5 | 47.62 | 68.20 |
| 2 7/8″REG | 5 | 53.97 | 77.78 |
| 3 1/2″REG | 5 | 65.07 | 90.48 |
| 4 1/2″REG | 5 | 90.47 | 119.06 |
| 5 1/2″REG | 4 | 110.06 | 141.68 |
| 6 5/8″REG | 4 | 131.03 | 153.99 |
| 7 5/8″REG | 4 | 144.47 | 180.18 |
| 8 5/8″REG | 4 | 167.84 | 204.39 |
| 3 1/2″FH | 5 | 77.62 | 102.79 |
| 4″FH=NC40 | 4 | 89.66 | 110.33 |
| 4 1/2″FH | 5 | 96.31 | 123.83 |
| 5 1/2″FH | 4 | 126.79 | 150.02 |
| 6 5/8″FH | 4 | 150.37 | 173.83 |
| 2 3/8″IF=NC26 | 4 | 60.35 | 74.61 |
| 2 7/8″IF=NC31 | 4 | 71.31 | 87.71 |
| 3 1/2″IF=NC38 | 4 | 85.06 | 103.58 |
| 4″IF=NC46 | 4 | 103.73 | 124.61 |
| 4 1/2″IF=NC50 | 4 | 114.30 | 134.91 |
| 51/2″IF | 4 | 141.32 | 163.91 |
How much do oil drill pipes weigh?
The weight of drill pipe depends on its outer diameter (OD), wall thickness. Proper selection ensures balance between strength and ease of handling.The actual weight of API drill pipe depends on outside diameter, nominal weight, wall thickness, steel grade and tool joint configuration. The following table provides common API drill pipe sizes used in drilling operations.
| Pipe Size (OD) | Wall Thickness | Grade | Weight (lbs/ft) | Tool Joint OD |
| 2 3/8″ | 0.190″ | E75 | 6.65 lbs/ft | 3 1/16″ |
| 2 7/8″ | 0.276″ | E75 / X95 | 10.40 lbs/ft | 3 1/2″ |
| 3 1/2″ | 0.300″ | G105 / S135 | 13.30 lbs/ft | 4 3/4″ |
| 4″ | 0.330″ | G105 / S135 | 14.00–16.60 lbs/ft | 5″ |
| 5″ | 0.362″ | G105 / S135 | 19.50–21.90 lbs/ft | 6 5/8″ |
What is a Short Drill Pipe?
Short drill pipe, also known as short sub or crossover sub, is a specialized type of drill pipe that is shorter in length—typically ranging from 0.5 meters to 3 meters. It is used to adjust the bottom-hole assembly (BHA) length, facilitate tool positioning, or serve as a connection point between different thread types in the drill string.
Common Applications of Short Drill Pipes:
Length Compensation in directional drilling or vertical well planning.
Thread Conversion between incompatible tool joints.
Space Adjustment in tight drilling environments.
Use in MWD/LWD Systems for signal positioning.
Why Choose ELITE API Drill Pipes and drill pipe threads?
We supply high-quality API 5DP certified and GOST certified drill pipes designed to meet rigorous oilfield demands:
Full traceability of materials.
Tool joints welded and inspected with advanced ultrasonic testing.
Heat-treated for hardness and toughness
Threads phosphate-coated to reduce galling.
Available in all standard thread types (NC, IF, REG, PAC, etc.).
We also provide non-magnetic drill pipes, heavy weight drill pipes, and custom thread connections for directional and deep well drilling projects.
Why Are Our Drill Pipes More Expensive Than Others?
We are not the cheapest supplier on the market — and we don’t try to be. The price difference reflects real variables in material, processing, and quality control that directly affect how long your drill string lasts in the field. Here’s exactly what goes into every quote:
Wall Thickness — Affects strength and service life under torque/pressure
Options: 7.11 / 8.38 / 8.56 / 9.17 / 9.19 / 9.35 mm
Steel Grade — Affects yield strength and suitability for deep/high-stress wells
Options: E-75, X-95, G-105, S-135, V-150, SS-105, SS-135
Connection Thread Type — Affects rig compatibility and make-up/breakout durability
Options: NC, IF, FH, REG
Taper & Shoulder Design — Affects connection sealing and fatigue resistance
Options: Pin tool joint with 35° taper; box tool joint with 18° or 90° shoulder angle
Thread Protectors — Affects thread protection during transport and handling
Options: Plastic, plastic-steel, or pressed steel
Special Thread Types — Affects compatibility with specific rig/tool requirements
Options: DS, XT39, XT40, HT55, XT57, uXT, PAC, HTPAC, SH, OH, AOH (American Open Hole), H90
Length Range — Affects drill string configuration and rig floor handling
Options: R1: 6.10–7.01m · R2: 8.84–9.7m · R3: 12.19–13.72m
Hardbanding — Affects wear resistance against casing and abrasive formations
Options: Arnco 100XT, Arnco 200XT, Arnco 300XT, Botn, Duraband NC, TCS
Internal Plastic Coating (IPC) — Affects corrosion resistance and flow efficiency in sour/corrosive fluids
Options: Tube-Kote TK, DPC, TK34, TK34L, TK34XT
Packaging Method — Affects transport protection and shipping cost
Options: Bolt rack packaging, steel band strapping, internal rack packaging
Every one of these variables changes the final price — and the right combination depends on your well conditions, not ours. When you request a quote, our engineers will walk through these specs with you directly, so the number you get back reflects exactly what your drill string needs, not a generic catalog price.
[Discuss Your Specs & Get an Accurate Quote →]
Get a drill pipe quote and request a factory tour.
Whether you are operating in shale gas fields, offshore rigs, or extended-reach wells, our API 5DP and GOST-certified drill pipes deliver proven reliability and superior performance.
Contact our technical team today to get drill pipe threads,specifications, samples, or a factory quotation tailored to your needs.
To receive an official quotation and engineering data package
Outer Diameter (OD) & Nominal Weight: e.g., 5″ OD, 19.50 lb/ft or 25.60 lb/ft
Steel Grade: Standard (G105 / S135) or Sour Service (SS-95 / SS-105)
Connection Type: High-Torque Double-Shoulder (e.g., HT50, XT47) or Standard API
Length Range: Range 2 (27-30 ft) or Range 3 (38-45 ft)
Hardbanding & Coating: Arnco 100XT / Duraband NC + TK-34P Internal Plastic Coating
Quantity & Destination Port / Field Location
Learn more at:https://apidrillpipe.com
ELITE API Drill Pipe – FAQ
Q1: What steel grades are available for API drill pipe?
A: Standard grades include E-75, X-95, G-105, and S-135, with X, G, and S classified as high-strength grades. ELITE also offers V-150, SS-105, and SS-135 for specialized high-stress applications.
Q2: What thread connections does ELITE drill pipe use?
A: Common connections include NC (NC26 through NC77), IF, FH, and REG, sized to match drill pipe OD from 2-3/8″ up to 8-5/8″. Special thread types such as XT39, XT40, HT55, and PAC are also available for specific rig or tool requirements.
Q3: How much does drill pipe weigh?
A: Weight depends on outer diameter, wall thickness, and steel grade. For example, 2-3/8″ E75 drill pipe weighs approximately 6.65 lbs/ft, while 5″ G105/S135 drill pipe ranges from 19.50-21.90 lbs/ft. See the full weight chart above for all standard sizes.
Q4: Why do drill pipe prices vary so much between suppliers?
A: Price depends on wall thickness, steel grade, connection type, hardbanding, internal coating, and packaging method — not just pipe size. ELITE provides a transparent breakdown of these cost factors so you can compare quotes on a like-for-like basis.
Q5: Does ELITE provide Material Test Certificates (MTC)?
A: Yes. Every drill pipe shipment includes full material traceability with MTC documentation, along with ultrasonic testing (UT) and dimensional inspection reports.
Q6: Do you provide NACE MR0175 / ISO 15156 test reports for Sour Service steel grades (SS-95, SS-105)?
A: Yes. Every heat number for Sour Service drill pipe is subjected to Sulfide Stress Cracking (SSC) and Hydrogen-Induced Cracking (HIC) laboratory testing. Full compliance certificates per NACE MR0175 are delivered with the EN 10204 3.1 Mill Test Certificate.
