API 5CT METRIC : 1995

1. SCOPE
2. REFERENCES
3. DEFINITIONS
4. INFORMATION TO BE SUPPLIED BY THE PURCHASER
4.1 Casing
4.2 Tubing
5. PROCESS OF MANUFACTURE
5.1 General
5.2 Heat Treatment
5.3 Straightening
5.4 Traceability
6. MATERIAL REQUIREMENTS
6.1 Chemical Requirements
6.2 Mechanical Properties Requirements
7. DIMENSIONS, WEIGHTS, LENGTHS, DEFECTS, AND END
      FINISHES
7.1 Dimensions and Weights
7.2 Diameter
7.3 Wall Thickness
7.4 Weight
7.5 Length
7.6 Casing Jointers
7.7 Height and Trim of Electric Weld Flash
7.8 Straightness
7.9 Drift Requirements
7.10 Tolerances on Dimensions and Weights
7.11 Extended Length Upsets
7.12 Imperfections and Defects
7.13 Pipe Ends
7.14 Coupling Makeup and Thread Protection
8. COUPLINGS
8.1 Material
8.2 Process of Manufacture
8.3 Performance Properties
8.4 Mechanical Properties
8.5 Dimensions and Tolerances
8.6 Regular Couplings
8.7 Special Clearance Couplings - Groups 1, 2, and 3
8.8 Combination Couplings
8.9 Reducing Couplings
8.10 Seal-Ring Couplings
8.11 Special-Bevel Couplings - Groups 1, 2, and 3
8.12 Threading
8.13 Surface Inspection
8.14 Measurement of Imperfections
8.15 Repair and Removal of Imperfections and Defects
8.16 Thread Plating - Group 4
8.17 Couplings and Coupling Blank Protection - Group 4
9. INSPECTION AND TESTING
9.1 Test Equipment
9.2 Testing of Chemical Composition
9.3 Testing of Mechanical Properties
9.4 Hydrostatic Test
9.5 Dimensional Testing
9.6 Visual Inspection
9.7 Nondestructive Inspection
9.8 Test Methods and Results
9.9 Invalidation of Tests
9.10 Retests
10. MARKING
10.1 General
10.2 Stamp Marking Requirements
10.3 Stencil Marking Requirements
10.4 Color Code Identification
10.5 Thread Marking - All Groups
10.6 Pipe Threader Marking Requirements - All Groups
11. COATING AND PROTECTION
11.1 Coatings - All Groups
11.2 Thread Protectors
12. MINIMUM FACILITY REQUIREMENTS FOR VARIOUS CATEGORIES
      OF MANUFACTURERS
12.1 Pipe Mill
12.2 Processor
12.3 Threader
12.4 Coupling, Pup Joint, and Connector Manufacturer
13. DOCUMENTS
13.1 Certification
13.2 Certification Requirements - Group 4
13.3 Retention of Records
APPENDIX A - LIST OF API CASING AND TUBING (NORMATIVE)
APPENDIX B - SUPPLEMENTARY REQUIREMENTS (NORMATIVE)
APPENDIX C - PURCHASER INSPECTION (NORMATIVE)
APPENDIX D - MARKING INSTRUCTIONS FOR API LICENSEES
             (NORMATIVE)
APPENDIX M - METRIC CONVERSION PROCEDURE
Figures
1. Short Round Thread Casing and Coupling
2. Long Round Thread Casing and Coupling
3. Buttress Thread Casing and Coupling
4. Nonupset Tubing and Coupling
5. External-Upset Tubing and Coupling
6. Rounded Nose for External Upset Tubing
7. Integral Joint Tubing
8. Extreme-Line Casing
9. Measuring Full Length Straightness
10. Measuring End Straightness
11. Tensile Test Specimens
12. Typical Location of Test Samples Removed From Pipe,
     Coupling Stock, and Connector Material
13. Through Wall Hardness Test
14. Impact Test Specimen Orientation
15. Impact Test Specimen Outside Diameter Curvature
     Allowance
16. Examples of Marking Requirements and Sequence
B.1 Reference Standard
B.2 API Seal-Ring Coupling and Nonmetallic Ring for
     Round Thread Casing
B.3 API Seal-Ring coupling and Nonmetallic Ring for
     Buttress Thread Casing
B.4 API Seal-Ring Coupling and Nonmetallic Ring for
     Nonupset Tubing
B.5 API Seal-Ring Coupling and Nonmetallic Ring for
     Upset Tubing
B.6 Impact Test Specimen Outside Diameter Curvature
     Allowance
D.1 Examples of Marking Requirements and Sequence
NUMEROUS TABLES

Covers seamless and welded casing and tubing, couplings, pup joints and connectors in all grades in Metric units. Process of manufacture, chemical and mechanical property requirements, methods of test and dimensions are included. This edition of 5CT includes the requirements for casing and tubing previously detailed in the last editions of discontinued specs 5A, 5AC, 5AQ, and 5AX.