Description
OCTG & ENERGY TUBULARS / HIMOUNT
API 5CT J55 / K55 / L80 / N80 Casing And Tubing
API 5CT casing and tubing for oil and gas well construction, completion, and workover projects. Confirm grade, size, weight, connection, range length, drift, coupling, thread protector, and inspection scope before quotation.
Product codeHM-OCTG-006
Product familyOCTG casing and tubing
ProcessSeamless or welded casing and tubing with connection by order
Grade referenceJ55, K55, L80, N80 by order requirement
Product Categories
RFQ Checklist
- API standard
- Grade and type
- OD and weight
- Wall thickness
- Connection
- Range length
- Inspection scope
Manufacturing & Service
Product Overview
API 5CT casing and tubing for oil and gas well construction, completion, and workover projects. Confirm grade, size, weight, connection, range length, drift, coupling, thread protector, and inspection scope before quotation.
Key Specifications
| Product family | OCTG casing and tubing |
|---|---|
| Primary standard / project reference | API Spec 5CT |
| Grade / material reference | J55, K55, L80, N80 by order requirement |
| Manufacturing route | Seamless or welded casing and tubing with connection by order |
| Supply range | OD, weight, wall thickness, grade, connection type, range length, drift, coupling, and thread protection by API 5CT order. |
| 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 5CT J55K55N80-1N80-QL80-1L80-9CrL80-13CrP110Q125 casing and tubing
Size and order phrases
4-1/2 in5-1/2 in7 in9-5/8 in13-3/8 in casingR2/R3BTCLTC
Buyer search phrases
API 5CT J55 casing pipeL80 tubing supplierN80Q OCTG casing with BTC 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 5CT, ISO 11960, project well program specification |
|---|---|
| Common grade families | J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, P110, Q125 |
| Common size keywords | Casing, tubing, OD, weight lb/ft, Range 1/2/3, BTC, LTC, STC, premium connection |
| RFQ confirmation | OD, weight, grade, range length, connection, coupling, drift, thread protector and inspection |
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 5CT J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, P110, Q125 casing and tubing |
|---|---|
| Size / order examples | 4-1/2 in, 5-1/2 in, 7 in, 9-5/8 in, 13-3/8 in casing; R2/R3; BTC, LTC, STC, premium connection |
| Buyer search phrases | API 5CT J55 casing pipe; L80 tubing supplier; N80Q OCTG casing with BTC 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 5CT | Primary casing and tubing reference. |
| J55 / K55 / L80 / N80 | Common OCTG grade references; confirm exact grade and heat treatment by order. |
| Connection type | BTC/LTC/STC or premium connection must be confirmed. |
Common Export Specification Examples
| Standard family | Common grade / model | Typical export wording | Search phrase examples |
|---|---|---|---|
| API 5CT / ISO 11960 | J55, K55, N80-1, N80-Q, L80-1, P110, Q125 | 4-1/2, 5-1/2, 7, 9-5/8, 13-3/8 in casing; R2/R3 | API 5CT J55 casing pipe, N80Q casing supplier |
| Tubing grades | J55, L80, N80, P110 | 2-3/8, 2-7/8, 3-1/2 in tubing; EUE/NUE by order | L80 tubing supplier, P110 tubing pipe |
| Connections | BTC, LTC, STC, premium connection | Coupling, thread protector, drift and marking must be specified | API 5CT BTC casing, premium connection casing |
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 5CT / ISO 11960 | Primary casing and tubing reference for OCTG well-construction orders. | Confirm grade, OD, weight, range length, connection, coupling, drift, and inspection. |
| J55 / K55 / L80 / N80 / P110 | Common API 5CT casing and tubing grade family used in oilfield RFQs. | Well program, collapse/burst/tension design, and service environment control final choice. |
| BTC / LTC / STC / premium connection specification | Connection details may follow API thread forms or buyer/licensed premium connection requirements. | Threading, coupling, protector, phosphating, and inspection must be ordered explicitly. |
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 well casing
- Production tubing
- Well completion projects
- Workover and replacement strings
- Oilfield tubular supply
Testing And Documentation
- MTC to API 5CT when ordered
- Thread inspection
- Drift test when required
- Hydrostatic test as specified
- Dimensional inspection
- Coupling and protector inspection
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.
