![header thumbnail](/images/publishers\nen_cover.gif)
NEN EN ISO 11960 : 2014
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
![header thumbnail](/images/publishers\nen_cover.gif)
PETROLEUM AND NATURAL GAS INDUSTRIES - STEEL PIPES FOR USE AS CASING OR TUBING FOR WELLS
01-04-2021
12-01-2013
Foreword
Introduction
1 Scope
2 Conformance
2.1 Normative references
2.2 Units of measurement
3 Normative references
4 Terms, definitions, symbols and abbreviated terms
4.1 Terms and definitions
4.2 Symbols and abbreviated terms
5 Information to be supplied by the purchaser
5.1 Casing
5.2 Tubing
5.3 Coupling stock and accessories
6 Process of manufacture
6.1 General
6.2 Heat treatment
6.3 Straightening
6.4 Traceability
6.5 Processes requiring validation
7 Material requirements
7.1 Chemical composition
7.2 Tensile properties
7.3 Charpy V-notch test properties - General
requirements
7.4 Charpy V-notch (CVN) - Absorbed energy requirements
for coupling stock, coupling blanks and couplings
7.5 Charpy V-notch - Absorbed energy requirements for
pipe
7.6 Charpy V-notch test - Absorbed energy requirements
for casing and tubing accessories
7.7 Maximum hardness
7.8 Hardness variation - Grades C90, T95 and Q125
7.9 Process control - Grades C90, T95 and Q125
7.10 Hardenability - Minimum percentage martensite for
quenched and tempered products
7.11 Grain size - Grades C90 and T95
7.12 Surface condition - Grades L80 9Cr and L80 13Cr
7.13 Flattening - Electric-welded pipe
7.14 Sulfide stress corrosion cracking (SSCC) test
- Grades C90 and T95
8 Dimensions, masses, tolerances, pipe ends and defects
8.1 Labels and sizes
8.2 Dimensions and masses
8.3 Diameter
8.4 Wall thickness
8.5 Mass
8.6 Length
8.7 Casing jointers
8.8 Height and trim of electric-weld flash
8.9 Straightness
8.10 Drift requirements
8.11 Tolerances on dimensions and masses
8.12 Pipe ends
8.13 Defects
8.14 Coupling make-up and thread protection
9 Couplings
9.1 General requirements
9.2 Alternative grades or heat treatments
9.3 Process of manufacture - Groups 1, 2 and 3
9.4 Process of manufacture - Grade Q125
9.5 Mechanical properties
9.6 Dimensions and tolerances
9.7 Regular couplings
9.8 Special-clearance couplings - Groups 1, 2 and 3
9.9 Combination couplings
9.10 Reducing couplings - Groups 1, 2 and 3
9.11 Seal-ring couplings
9.12 Special bevel couplings - Groups 1, 2 and 3
9.13 Threading
9.14 Surface inspection
9.15 Measurement of imperfections
9.16 Repair and removal of imperfections and defects
9.17 Thread surface treatment - Grade Q125
9.18 Couplings and coupling blank protection - Grades
C90, T95 and Q125
10 Inspection and testing
10.1 Test equipment
10.2 Lot definition for testing of mechanical properties
10.3 Testing of chemical composition
10.4 Tensile tests
10.5 Flattening test
10.6 Hardness test
10.7 Impact test
10.8 Grain size determination - Grades C90 and T95
10.9 Hardenability - Grades C90 and T95
10.10 Sulfide stress cracking test - Grades C90 and T95
10.11 Metallographic evaluation - EW Grades P110 and
Q125
10.12 Hydrostatic test
10.13 Dimensional testing
10.14 Visual inspection
10.15 Non-destructive examination (NDE)
11 Marking
11.1 General
11.2 Stamp marking requirements
11.3 Stencil marking requirements
11.4 Colour identification
11.5 Thread and end-finish marking - All groups
11.6 Pipe-threader marking requirements - All groups
12 Coating and protection
12.1 Coatings - All groups
12.2 Thread protectors
13 Documents
13.1 Electronic media - All groups
13.2 Certification - Groups 1, 2 and 3
13.3 Certification requirements - Grade Q125
13.4 Retention of records
14 Minimum facility requirements for various categories
of manufacturer
14.1 Pipe mill
14.2 Processor
14.3 Threader
14.4 Coupling, pup-joint, and accessory manufacturer
Annex A (normative) Supplementary requirements
Annex B (normative) Purchaser inspection
Annex C (normative) Tables in SI units
Annex D (normative) Figures in SI (USC) units
Annex E (normative) Tables in USC units
Annex F (informative) Marking instructions for API
licensees
Annex G (informative) Procedures used to convert from USC
units to SI units
Annex H (normative) Product Specifications levels
Annex I (normative) Requirements for thread protector design
validation
Annex J (informative) Summary of Product Specification level
(PSL) requirements
Bibliography
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.