Description
OCTG & ENERGY TUBULARS / HIMOUNT
API 5DP Carbon Steel Drill Pipe
Oilfield drill pipe for drilling operations. Drill pipe should not be treated as API 5CT casing or tubing; confirm API 5DP, grade, upset type, tool joint, connection, hardbanding, inspection class, and length before quotation.
Product codeHM-OCTG-007
Product familyOilfield drill pipe
ProcessSeamless or welded drill pipe with tool joint and connection by order
Grade referenceProject-specified drill pipe grade
Product Categories
RFQ Checklist
- API standard
- Grade and type
- OD and weight
- Wall thickness
- Connection
- Range length
- Inspection scope
Manufacturing & Service
Product Overview
Oilfield drill pipe for drilling operations. Drill pipe should not be treated as API 5CT casing or tubing; confirm API 5DP, grade, upset type, tool joint, connection, hardbanding, inspection class, and length before quotation.
Key Specifications
| Product family | Oilfield drill pipe |
|---|---|
| Primary standard / project reference | API Spec 5DP / project drilling specification |
| Grade / material reference | Project-specified drill pipe grade |
| Manufacturing route | Seamless or welded drill pipe with tool joint and connection by order |
| Supply range | OD, wall thickness, grade, upset type, tool joint, connection, length, hardbanding, and inspection class by API 5DP or project specification. |
| Order details to confirm | API standard and edition, grade/type, OD, weight or wall thickness, connection, range length, coupling, thread protector, drift, inspection scope, quantity, and destination port. |
International Model Search Index
Common international standard, grade, size and RFQ phrases buyers use when searching or preparing a steel enquiry.
Standards and grade calls
API 5DP E75X95G105S135 drill pipeNC38NC46NC50IF connection by project
Size and order phrases
2-3/8 in3-1/2 in4-1/2 in5 in drill pipeR2/R3hardbandinginternal coatingtool joint
Buyer search phrases
API 5DP S135 drill pipeG105 drill pipe supplier5 inch drill pipe with NC50 connection
Index terms are for RFQ routing and search visibility. Final supply must follow the ordered standard edition, project specification, drawing, MTC and inspection plan.
Common International Models And Size Keywords
| Common standards | API Spec 5DP, ISO 11961, API RP 7G-2 inspection reference |
|---|---|
| Common grade families | E75, X95, G105, S135, tool joint grade, sour service grade by project |
| Common size keywords | Drill pipe OD 2-3/8 to 6-5/8 in, R1/R2/R3, tool joint, hardbanding, internal coating |
| RFQ confirmation | OD, weight, grade, range, connection, tool joint, hardbanding, coating and inspection level |
These common model, grade and size keywords are included to help international buyers route RFQs. They are not automatic equivalents; final supply follows the ordered standard, project specification, MTC and inspection plan.
Common RFQ Model Search Keywords
| Grade model examples | API 5DP E75, X95, G105, S135 drill pipe, NC38, NC46, NC50, IF connection by project |
|---|---|
| Size / order examples | 2-3/8 in, 3-1/2 in, 4-1/2 in, 5 in drill pipe; R2/R3; hardbanding; internal coating; tool joint |
| Buyer search phrases | API 5DP S135 drill pipe; G105 drill pipe supplier; 5 inch drill pipe with NC50 connection |
These buyer-style keyword examples are for inquiry matching and Google indexing. They should be confirmed against the buyer drawing, ordered standard edition, project specification and MTC before quotation.
International Standard Reference
| Reference | Buyer-facing use |
|---|---|
| API Spec 5DP | Drill pipe reference. Use this instead of API 5CT for drill pipe enquiries. |
| API Spec 5CT | Casing and tubing reference, not a drill pipe standard. |
| Project drilling specification | Controls upset type, tool joint, connection, hardbanding, and inspection class. |
Common Export Specification Examples
| Standard family | Common grade / model | Typical export wording | Search phrase examples |
|---|---|---|---|
| API 5DP / ISO 11961 | E75, X95, G105, S135 | 2-3/8, 3-1/2, 4-1/2, 5 in drill pipe; R2/R3 | API 5DP S135 drill pipe, G105 drill pipe supplier |
| Connections | NC38, NC46, NC50, IF | Tool joint, hardbanding, internal coating and inspection level by drilling program | 5 inch drill pipe NC50 connection |
| Inspection references | API RP 7G-2 / project DS-1 style inspection | Confirm used/new condition and inspection class before quotation | drill pipe with hardbanding supplier |
These examples are practical RFQ and search terms used by international buyers. Final quotation should follow the ordered standard edition, project drawing, mill test certificate and inspection plan.
Comparable International References
| Reference family | How buyers use it | Quotation note |
|---|---|---|
| API Spec 5DP / ISO 11961 | Primary drill pipe reference for drill stem orders. | Confirm pipe body grade, OD, weight, range, tool joint, and inspection level. |
| E75 / X95 / G105 / S135 | Common API drill pipe grade family for RFQ comparison. | Do not substitute without drilling program approval. |
| Tool joint / hardbanding / internal coating specification | Often controlled by buyer drilling requirements rather than pipe body grade alone. | Confirm connection, hardbanding, coating, and DS-1 or project inspection if required. |
OCTG references are not interchangeable with line pipe, structural tubing, or pressure pipe standards. Final compliance follows API edition, buyer specification, connection requirement, and inspection plan.
Applications
- Oil and gas drilling operations
- Workover and replacement drill strings
- Directional drilling support
- Onshore and offshore drilling projects
- Oilfield tubular supply
Testing And Documentation
- MTC to ordered drill pipe specification
- Dimensional inspection
- Connection and tool-joint inspection
- Magnetic particle or ultrasonic inspection when required
- Hardbanding inspection when specified
- Drift or straightness check when ordered
Packing And Delivery
OCTG products can be supplied with coupling, thread protectors, drift marking, stencil marking, bundle straps, rack packing, truck loading, container loading, or seaworthy packing according to size and shipment plan.
Inquiry Information
Please send API standard, grade/type, OD, weight or wall thickness, connection, range length, coupling/protector requirement, quantity, destination port, and required inspection scope.
