API 5CT Casing tubing Metallic materials

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 2.2 Units of measurement

 
In this International Standard, data are expressed in both the International System (SI) of units and the United States Customary (USC) system of units. For a specific order item, it is intended that only one system of units be used, without combining data expressed in the other system.
 
Products manufactured to specifications expressed in either of these unit systems shall be considered equivalent and totally interchangeable. Consequently, compliance with the requirements of this International Standard as expressed in one system provides compliance with requirements expressed in the other system.
 
For data expressed in the SI, a comma is used as the decimal separator and a space as the thousands separator. For data expressed in the USC system, a dot (on the line) is used as the decimal separator and a space as the thousands separator.
 
In the text, data in SI units are followed by data in USC units in parentheses.
 
Separate tables for data expressed in SI units and USC units are given in Annex C and Annex E respectively. Figures are contained in Annex D and express data in both SI and USC units.
 
 
API Specification 5CT / ISO 11960
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1:Test method I
 
ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1:Test method (Scales A, B, C, D, E, F, G, H,
 
K, N, T)
 
ISO 6892, Metallic materials — Tensile testing at ambient temperature
 
ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Verification and calibration of the force-measuring system
 
ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual I assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings
 
ISO 9303, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Full peripheral ultrasonic testing for the detection of longitudinal imperfections
 
ISO 9304, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Eddy current testing for the detection of imperfections
 
ISO 9305, Seamless steel tubes for pressure purposes — Full peripheral ultrasonic testing for the detection of transverse imperfections
 
ISO 9402, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Full peripheral magnetic transducer/flux leakage testing of ferromagnetic steel tubes for the detection of longitudinal imperfections
 
ISO 9598, Seamless steel tubes for pressure purposes — Full peripheral magnetic transducer/flux leakage testing of ferromagnetic steel tubes for the detection of transverse imperfections
 
ISO 9764, Electric resistance and induction welded steel tubes for pressure purposes — Ultrasonic testing of the weld seam for the detection of longitudinal imperfections
ISO/TR 9769, Steel and iron — Review of available methods of analysis
ISO 10400, Petroleum and natural gas industries — Formulae and calculation for casing, tubing, drill pipe and line pipe properties
 
ISO 11484, Steel tubes for pressure purposes — Qualification and certification of non-destructive testing (NDT) personnel
 
ISO 13665, Seamless and welded steel tubes for pressure purposes — Magnetic particle inspection of the tube body for the detection of surface imperfections
 
ISO 13678, Petroleum and natural gas industries — Evaluation and testing of thread compounds
 
2 Conformance
 
2.1 Normative references
 
In the interests of world-wide application of this International Standard, ISO/TC 67 has decided, after detailed technical analysis, that certain of the normative documents listed in Clause 3 and prepared by ISO/TC 67 or other ISO Technical Committee are interchangeable in the context of the relevant requirement with the relevant document prepared by the American Petroleum Institute (API), the American Society for Testing and Materials (ASTM) or the American National Standards Institute (ANSI). These latter documents are cited in the running text following the ISO reference and preceded by “or”,for example “ISO XXXX or API YYYY”. Application of an alternative normative document cited in this manner will lead to technical results different from the use of the preceding ISO reference. However, both results are acceptable and these documents are thus considered interchangeable in practice.
 
 
3 Normative references
 
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
 
ISO 31-0, Quantities and units — Part 0: General principles I ISO 643, Steels — Micrographic determination of the apparent grain size
Copyright American Petroleum Institute Reproduced by IHS under license with API
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