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2191502 
Technical Report 
Standard 
Specification for casing and tubing - Ninth edition 
American Petroleum Institute :: API 
2011 
API Publishing Services 
Washington, DC 
API SPEC 5CT 
has other version or edition 2191361 Specification 5CT/ISO 11960: Specification for casing and tubing - Eighth edition - Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells
Specifies the technical delivery conditions for steel pipes (casing, tubing, plain end casing liners and pup-joints) and accessories. This standard is applicable to the following connections in accordance with API Spec 5B:

-short round thread casting (STC);
-long round thread casing (LC);
-buttress thread casing (BC);
-extreme-line casing (XC);
-non-upset tubing (NU);
-external upset tubing (EU);
-intergal joint tubing

This edition of API Spec 5CT is the modified adoption of ISO 11960, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells. This specification contains the API monogram annex as part of the U.S. national adoption. 
9th