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L80 13Cr seamless casing and tubing for corrosion-sensitive well service
SAKYMETAL supplies API 5CT L80 13Cr stainless steel seamless casing and tubing against the agreed standard edition, dimensions, mass, end finish, inspection scope and mill documentation. Each quotation is reviewed against the actual well and purchasing specification.
Grade
API L80 Type 13Cr, commonly written L80 13Cr or L80-13Cr. The grade designation and ordered edition must appear on the enquiry.
Product forms
Seamless casing and tubing with plain ends, API threaded-and-coupled ends, or project connections where technically agreed.
Order control
Size, wall or mass, length range, connection, inspection, MTC, marking, protection and delivery terms are confirmed per order.
Request API 5CT L80 13Cr Stainless Steel Seamless Casing and Tubing by standard, size and finish, with inspection and mill test certificates from SAKY METAL.
Technical procurement data
Standards, supply and inspection
API 5CT L80 13Cr Stainless Steel Seamless Casing and Tubing is seamless martensitic 13Cr OCTG in the L80 strength class, supplied as casing or tubing to the ordered API 5CT requirements.
| Material / grade | API L80 Type 13Cr / L80 13Cr |
|---|---|
| Product form | Seamless casing and tubing |
| Standards and order reference | API Specification 5CT, ordered edition including applicable addenda and errata; ISO 11960:2020 when specified |
| Dimensions and tolerances | API/ISO outside diameter, wall or nominal mass, drift, length range and tolerances as ordered |
| Surface and supply condition | Plain end, applicable API threaded and coupled end, or agreed project connection; protected for transport |
| Inspection options | Visual, dimensional, mechanical, pressure testing and NDE scope to the governing standard and purchase order |
| MTC and traceability | MTC, heat and product traceability, test records, marking and agreed third-party inspection documents |
| Typical applications | Corrosion-sensitive casing and production tubing service after review of CO2, H2S, chloride, temperature and well conditions |
| RFQ checklist | State casing or tubing, API edition, grade, OD, wall or mass, length, quantity, connection, inspection, MTC, service environment and destination |
Final compliance is defined by the purchase order, approved drawing and issued mill documentation. Availability is confirmed for each grade, size and production route.
API 5CT L80 13Cr casing and tubing is a martensitic chromium-bearing OCTG grade in the L80 strength class. It is selected where resistance to carbon-dioxide-related corrosion is important, but it is not a universal solution for every corrosive or sour well. Material selection must account for the actual CO2 and H2S partial pressures, chloride level, temperature, pH, water phase, stress state, completion fluids and connection design.
Product Specification
The table describes the supply basis for quotation. Final acceptance is governed by the purchase order, the named edition of the standard, approved technical documents and the issued material certificate.
| Product | Seamless casing and tubing for oil and gas wells |
|---|---|
| Grade designation | API L80 Type 13Cr / L80 13Cr |
| Primary standard | API Specification 5CT, 11th Edition, including the addenda and errata applicable to the purchase order |
| Alternative order reference | ISO 11960:2020 when expressly required by the purchaser |
| Manufacturing route | Seamless supply for this product offering |
| Dimensions | Outside diameter, wall thickness or nominal mass, drift and tolerances to the ordered API/ISO table or approved purchase specification |
| Lengths | Applicable range length or agreed cut length; state permitted variation and end preparation |
| Casing end options | Plain end or applicable API casing connection, such as short round, long round or buttress, subject to size and order requirements |
| Tubing end options | Plain end, non-upset or external-upset API tubing connection, subject to size and order requirements |
| Special connections | Premium or proprietary connections require an approved drawing, license basis and separate technical confirmation |
| Heat treatment | Controlled heat treatment, tempering and test records in accordance with the ordered L80 13Cr requirements |
| Inspection | Visual and dimensional inspection, mechanical testing, hydrostatic or permitted alternative testing, and NDE as required by the standard and order |
| Traceability | Heat and product traceability, marking and MTC package to the agreed inspection level |
| Protection and packing | Thread protectors, compatible preservation, bundled packing and shipping marks as specified |
Why Buyers Specify L80 13Cr
The nominal chromium level supports formation of a more protective surface film than conventional low-alloy L80 in suitable produced-water environments. This can make L80 13Cr a practical choice for wells where wet CO2 corrosion is a controlling material-selection concern.
CO2 corrosion strategy
Often evaluated for production tubing and casing exposed to carbon dioxide and a water phase. Suitability still depends on the complete well chemistry and operating envelope.
L80 strength class
The grade combines the ordered L80 mechanical-property framework with a chromium-bearing martensitic metallurgy. Certified values come from the governing edition and MTC.
Traceable OCTG supply
API 5CT provides the purchasing framework for sizes, masses, wall thicknesses, grades, end finishes, testing, marking and certification.
Important: L80 13Cr is not interchangeable with L80 Type 1, and the words “stainless steel” do not by themselves establish suitability for sour service. Where H2S is present, the purchaser should state the environmental limits, applicable ISO 15156/NACE MR0175 requirements and any project-specific qualification criteria before quotation.
Casing, Tubing and End-Finish Selection
Casing supports the wellbore, while tubing provides the principal production or injection flow path. The purchase order must identify the product form and connection rather than using “pipe” as the only description.
- Casing size, nominal mass and wall
- Tubing size, wall and upset condition
- API or approved proprietary connection
- Coupling grade, dimensions and coating
- Thread compound or clean/dry delivery basis
- Protector type and transport packaging
Inspection and Documentation Options
Inspection should be defined before manufacture or allocation. Retrospective document requests can be impossible to satisfy when the required test or witness point was not included in the original order.
- Material test certificate with heat and product traceability
- Chemical composition and mechanical-test results
- Dimensional, drift and straightness verification
- Hydrostatic or standard-permitted alternative test records
- Non-destructive examination to the ordered coverage
- Thread gauging and connection inspection reports
- Positive material identification when agreed
- Third-party inspection or purchaser witness points
- Marking, tally, packing list and shipping documentation
- API Monogram status only when explicitly quoted and documented
Typical Applications
The grade is commonly considered for corrosion-sensitive oil and gas production environments after a qualified materials review. The list below describes typical evaluation areas, not blanket service guarantees.
- Production tubing in wet CO2-containing wells
- Casing strings exposed to corrosive produced fluids
- Injection or completion strings with defined chemistry
- Onshore and offshore oil and gas wells
- Workover replacement strings matching an approved design
- Project-specific pup joints and accessory tubulars
Engineering Review Before Purchase
A technically complete RFQ reduces grade and connection risk. The well operator or responsible materials engineer should establish the design basis; SAKYMETAL can then review supply against the stated requirements.
Environment
State CO2, H2S, chloride, water cut, pH, operating and shut-in temperatures, pressure, flow regime and chemical-treatment program.
Mechanical design
State design loads, collapse and burst basis, tension, connection performance, drift requirement and any high-collapse or special-performance requirement.
Acceptance basis
Name the standard edition, addenda, purchaser specification, deviations, inspection level, document language and third-party witness requirements.
Request a Quote for API 5CT L80 13Cr Casing or Tubing
Send product form, API 5CT edition, grade, outside diameter, wall or nominal mass, length range, quantity, end finish, coupling and protector requirements, inspection scope, MTC requirements, service environment, destination and requested delivery date. For sour or mixed-service wells, include the approved materials specification and environmental limits.
Related Stainless Steel Pipe Products
Frequently Asked Questions
Is L80 13Cr the same as ordinary L80?
No. L80 is a strength class that includes different material types. L80 Type 13Cr is a chromium-bearing martensitic grade and must not be substituted automatically for L80 Type 1 or another L80 type.
Is API 5CT L80 13Cr a stainless steel?
It is commonly described commercially as a 13Cr martensitic stainless OCTG grade. For procurement, use the exact API grade designation, standard edition and product requirements rather than relying only on the general term “stainless steel.”
Is L80 13Cr suitable for sour service?
Not automatically. Suitability depends on H2S partial pressure, pH, chloride, temperature, stress, metallurgy, heat treatment and the project acceptance basis. State the applicable ISO 15156/NACE MR0175 and operator requirements for engineering review.
Which connections are available?
Plain ends and applicable API threaded-and-coupled casing or tubing connections can be reviewed by size. Premium connections require the connection name, revision, drawing or license basis and the required performance envelope.
Can you provide MTC and third-party inspection?
Material certificates, traceability records and third-party inspection can be included when defined before quotation. State the certificate type, witness points, inspection agency and required report package.
What information is required for a fast quotation?
Provide casing or tubing, API 5CT edition, L80 13Cr grade, size, wall or nominal mass, length, quantity, end finish, connection, inspection, MTC, environmental requirements, destination and delivery schedule.
Primary Technical References
- American Petroleum Institute – API Specification 5CT, 11th Edition
- American Petroleum Institute – Addendum 1 to API Specification 5CT, 11th Edition
- American Petroleum Institute – API 5CT addenda and errata status
- ISO 11960:2020 – Steel pipes for use as casing or tubing for wells
Reference links establish general scope and edition status. They do not replace the licensed standard, engineering design, purchase order or certified mill documentation. API and related marks are the property of their respective owners; no Monogram claim is made unless expressly stated in the quotation and supply documents.