Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Terms and definitions
5 Symbols and abbreviated terms
6 Triaxial Yield of Pipe Body
6.1 Introduction
6.2 Assumptions and Limitations
6.3 Data Requirements
6.4 Design Formula for Triaxial Yield of Pipe Body
6.5 Example Calculations
7 Ductile Rupture of the Pipe Body
7.1 Introduction
7.2 Assumptions and Limitations
7.3 Data Requirements
7.4 Design Formula for Ductile Rupture
7.5 Adjustment for the Effect of Axial Tension and
External Pressure
7.6 Example Calculations
8 External Pressure Resistance
8.1 Introduction
8.2 Assumptions and Limitations
8.3 Data Requirements
8.4 Design Formula for Collapse of Pipe Body
8.5 Formulas for Empirical Constants
8.6 Example Calculations
9 Joint Strength
9.1 Introduction
9.2 Design Formulas for API Casing Connections
Tensile Joint Strength
10 Pressure Performance for Connections
10.1 Design Formulas for Internal Yield Pressure
of Couplings
10.2 Design Formulas for Internal Pressure Leak
Resistance at E[1] or E[7] Plane
11 Calculated Masses
11.1 Nominal Masses
11.2 Calculated Plain-End Mass
11.3 Calculated Threaded and Coupled Mass
11.4 Calculated Upset and Threaded Mass for Integral
Joint Tubing and Extreme-Line Casing
11.5 Calculated Upset Mass
11.6 Mass Gain Due to End Finishing
11.7 Calculated Coupling Mass
11.8 Calculated Mass Removed during Threading
11.9 Calculated Mass of External Upsets
11.10 Calculated Mass of Internal Upsets
11.11 Calculated Mass of External-Internal Upsets
11.12 Calculated Mass of External-Line Upsets
12 Elongation
12.1 Background
13 Flattening Tests
13.2 Flattening Tests for Line Pipe
14 Hydrostatic Test Pressures
14.1 Hydrostatic Test Pressures for plain-End Pipe,
Extreme-Line Casing and Integral Joint Tubing
14.2 Hydrostatic Test Pressure for Threaded and
Coupled Pipe
15 Make-up Torque for Round Thread Casing and Tubing
15.1 Background
16 Guided Bend Tests for Submerged Arc Welded Line Pipe
16.1 Background
17 Determination of Minimum Impact Specimen Size for
API Couplings and Pipe
17.1 Critical Thickness
17.2 Calculated Coupling Blank Thickness
17.3 Calculated Wall Thickness for Transverse
Specimens
17.4 Calculated Wall Thickness for Longitudinal
Specimens
17.5 Minimum Specimen Size for API Couplings
17.6 Impact Specimen Size for Pipe
17.7 Larger Size Specimens
17.8 Reference Information
Annex A (informative) Discussion of Formulas for
Triaxial Yield of Pipe Body
A.1 Triaxial Yield of Pipe Body
A.2 Initial Yield of Pipe Body, Lame Formulation
for Pipe when External Pressure, Bending and
Torsion are Zero
A.3 Initial Yield of Pipe Body, Historical API
Formulation
Annex B (informative) Discussion of Formulas for Ductile
Rupture
B.1 Introduction
B.2 Ductile Rupture of Pipe Body
B.3 Selection of a Ductile Rupture Model
B.4 Pipe Rupture Data Base Used to Validate the
Rupture Models
B.5 Comparison Between the Different Rupture
Models and Pipe Rupture Data Under Capped-End
Conditions
B.6 Comparison Between the Recommended Rupture
Model and Pipe Rupture Data Under Capped-End
Conditions
B.7 The Role of Imperfections in the Ductile
Rupture Formula
B.8 Template for Probabillistic Calculation of
Ductile Rupture Strength
Annex C (normative) Rupture Test Procedure
C.1 Specimen Ends
C.2 Specimen Length
C.3 Application of Pressure
Annex D (informative) Discussion of Formulas For Fracture
D.1 Material Induced Fracture of the Pipe Body
D.2 Fracture due to Environmental Crack Initiation
Annex E (informative) Discussion of Historical, API Collapse
Formulas
E.1 Introduction
E.2 Collapse Pressure Formulas
E.3 Derivation of Collapse Pressure
Annex F (informative) Proposed Formulas for Collapse
F.1 Draft Collapse Section of Main Text
Annex G (informative) Discussion of Proposed Formulas for
Collapse
G.1 Collapse Failure of the Pipe Body
G.2 KT Collapse Formula
G.3 KT Collapse Formula, External pressure only
G.4 Limitations
G.5 Using the KT Collapse Formula as Design Formula
Annex H (informative) Development of Proposed Formulas for
Collapse of Q&T Pipe
H.1 Introduction
H.2 Selection of Ultimate Limit State Formula
H.3 Ultimate Limit State Formula
H.4 Input Variable PDF Types and Parameters
H.5 Target Reliability Level
H.6 Design Formula
H.7 Risk-Calibrated Design Strength
Annex I (informative) Development of Proposed Formulas
for Collapse of non-Q&T Pipe
I.1 Introduction
I.2 Ultimate Limit State Formula
I.3 Design Formulas
I.4 Results
Annex J (normative) Calculation Procedure for Case-Specific
Q&T Collapse Strengths
J.1 Introduction
J.2 Production Quality Statistics
J.3 Probabillistic Analysis
J.4 Substantiation of case-Specific Strengths
Annex K (normative) Collapse Test Procedure
K.1 Test Specimen
K.2 Test Apparatus
K.3 Measurements Prior to Collapse Testing
K.4 Test Procedure
K.5 Data Reporting
Annex L (informative) Discussion of Formulas for Joint
Strength
L.1 Introduction
L.2 Design Formulas for API Casing Connections
Tensile Joint Strength
Annex M (informative) Table of Calculated Performance
Properties
Bibliography
Annex N
N.1 Burst
N.2 Collapse