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API SPEC 5CTM

1995 Edition, January 1, 1995

Complete Document

Specification for Casing and Tubing (Metric Units)



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Superseded By: API SPEC 5CT

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G05CTM * CNCL S/S BY API SPEC 5CT
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Description / Abstract:

1 Scope

1.1 This specification covers steel casing, tubing, and liners in the designations and wall thicknesses applicable to the following four groups and shown in Tables A-1, A-2, and A-3 of Appendix A. This specification also covers pup joints, connectors, couplings, and thread protection. Supplementary requirements are specified in Appendix B.

a. Group 1--All casing and tubing in Grades H, J, K, and N listed in Tables A-1, A-2, and A-3.

b. Group 2--All restricted yield strength casing and tubing grades C, L, and T listed in Tables A-1 and A-3 and other outside diameters and/or wall thicknesses of Grades C90 and T95 as agreed upon between the purchaser and the manufacturer.

c. Group 3--All high strength casing and tubing in seamless Grade P listed in Tables A-1 and A-3 and all sizes 5½ and larger electric welded (EW) Grade P listed in Table A-1.

d. Group 4--All special service casing in Grade Q that is listed in Table A-1 or other outside diameters and/or wall thicknesses as specified on the purchase order.

All requirements given herein for casing and tubing shall apply to pup joints and connectors, except as otherwise specified.

In developing an order for products made to this specification, the user should refer to Section 4 to properly define specific requirements.

1.2 Dimensional requirements on threads and thread gauges, stipulations on gauging practice, gauge specifications, and certification, as well as instruments and methods for inspection of threads are given in API Standard 5B and are applicable to products covered by this specification.

1.3 In the dimensional tables herein, pipe is designated by outside diameter size. The outside diameter size of external-upset pipe is the outside diameter of the body of the pipe, not the upset portion.

1.4 The U.S. customary equivalent units of the metric values in this specification are provided in API Specification 5CT, Specification for Casing and Tubing (U.S. Customary Units). The procedures which were used to make the conversions are shown in Appendix M.