Buy API SPEC 5CT:2023+ ERR 3:2026

Casing and Tubing

Available format(s)

PDF

Language(s)

English

Published date

01-06-2026

Publisher

American Petroleum Institute

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£264.35

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Summarise this standard

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This standard specifies the technical delivery conditions for steel pipes (casing, tubing, and pup joints), couplings, coupling stock, coupling material, and accessory material.

DocumentType	Standard
Pages	262
PublisherName	American Petroleum Institute
Status	Current
Supersedes	API SPEC 5CT:2023+ADD 1:2025

Frequently Asked Questions

API 5CT specifies technical, material and performance requirements for the oil and gas equipment or tubular product identified by the document. In practice it is applied by petroleum operators, engineering contractors, manufacturers and inspectors procuring critical oilfield equipment.

No — API 5CT is a United States standard published by American Petroleum Institute (API), with its listed region as United States.

API 5CT is American Petroleum Institute (API)'s standard for oil and gas equipment and tubular products, while API SPEC 6A:2018+ADD 4:2024 covers valves and wellhead equipment (United States). API 5CT specifies technical, material and performance requirements for the oil and gas equipment or tubular product identified by the document. API SPEC 6A:2018+ADD 4:2024 specifies design, manufacture or testing requirements for valves, flanges or wellhead equipment.

API 5CT is used by petroleum operators, engineering contractors, manufacturers and inspectors procuring critical oilfield equipment. It is a United States standard published by American Petroleum Institute (API).

API 5CT specifies technical, material and performance requirements for the oil and gas equipment or tubular product identified by the document. It is a United States standard published by American Petroleum Institute (API).

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API SPEC 5CT:2023+ ERR 3:2026

Casing and Tubing

Abstract

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What is API 5CT used for?

Is API 5CT an Australian standard?

What is the difference between API 5CT and API SPEC 6A:2018+ADD 4:2024?

Who uses API 5CT?

What does API 5CT cover?