ISO/TR 10400:2018

TECHNICAL ISO/TR
REPORT 10400
Second edition
2018-08
Petroleum and natural gas
industries — Formulae and
calculations for the properties of
casing, tubing, drill pipe and line pipe
used as casing or tubing
Industries du pétrole et du gaz naturel — Formules et calculs relatifs
aux propriétés des tubes de cuvelage, des tubes de production, des
tiges de forage et des tubes de conduites utilisés comme tubes de
cuvelage et tubes de production
Reference number
ISO/TR 10400:2018(E)
©
ISO 2018

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ISO/TR 10400:2018(E)

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© ISO 2018
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ii © ISO 2018 – All rights reserved

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ISO/TR 10400:2018(E)

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Symbols . 4
5 Conformance .13
5.1 References .13
5.2 Units of measurement . .13
6 Triaxial yield of pipe body .13
6.1 General .13
6.2 Assumptions and limitations .13
6.2.1 General.13
6.2.2 Concentric, circular cross-sectional geometry .14
6.2.3 Isotropic yield . .14
6.2.4 No residual stress .14
6.2.5 Cross-sectional instability (collapse) and axial instability (column buckling) .14
6.3 Data requirements .14
6.4 Design formula for triaxial yield of pipe body .14
6.5 Application of design formula for triaxial yield of pipe body to line pipe .16
6.6 Example calculations .16
6.6.1 Initial yield of pipe body, Lamé formula for pipe when external pressure,
bending and torsion are zero .16
6.6.2 Yield design formula, special case for thin wall pipe with internal pressure
only and zero axial load .18
6.6.3 Pipe body yield strength .18
6.6.4 Yield in the absence of bending and torsion .19
7 Ductile rupture of the pipe body .20
7.1 General .20
7.2 Assumptions and limitations .20
7.3 Data requirements .21
7.3.1 General.21
7.3.2 Determination of the hardening index.21
7.3.3 Determination of the burst strength factor, k .
a 22
7.4 Design formula for capped-end ductile rupture .23
7.5 Adjustment for the effect of axial force and external pressure .24
7.5.1 General.24
7.5.2 Design formula for ductile rupture under combined loads .25
7.5.3 Design formula for ductile necking under combined loads .26
7.5.4 Boundary between rupture and necking .27
7.5.5 Axisymmetric wrinkling under combined loads .27
7.6 Example calculations .28
7.6.1 Ductile rupture of an end-capped pipe .28
7.6.2 Ductile rupture for a given true axial load .28
8 External pressure resistance .29
8.1 General .29
8.2 Assumptions and limitations .29
8.3 Data requirements .29
8.4 Design formula for collapse of pipe body .30
8.4.1 General.30
8.4.2 Yield strength collapse pressure formula .30
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ISO/TR 10400:2018(E)

8.4.3 Plastic collapse pressure formula .31
8.4.4 Transition collapse pressure formula .33
8.4.5 Elastic collapse pressure formula .34
8.4.6 Collapse pressure under axial tensile stress .35
8.4.7 Collapse pressure under axial stress and internal pressure .35
8.5 Formulae for empirical constants .35
8.5.1 General.35
8.5.2 SI units .36
8.5.3 USC units .36
8.6 Application of collapse pressure formulae to line pipe .37
8.7 Example calculations .37
9 Joint strength .37
9.1 General .37
9.2 API casing connection tensile joint strength .37
9.2.1 General.37
9.2.2 Round thread casing joint strength .38
9.2.3 Buttress thread casing joint strength.40
9.3 API tubing connection tensile joint strength .42
9.3.1 General.42
9.3.2 Non-upset tubing joint strength .42
9.3.3 Upset tubing joint strength .43
9.4 Line pipe connection joint strength .44
10 Pressure performance for couplings .44
10.1 General .44
10.2 Internal yield pressure of round thread and buttress couplings .44
10.3 Internal pressure leak resistance of round thread or buttress couplings .45
11 Calculated masses .48
11.1 General .48
11.2 Nominal linear masses .48
11.3 Calculated plain-end mass .48
11.4 Calculated finished-end mass.49
11.5 Calculated threaded and coupled mass .49
11.5.1 General.49
11.5.2 Direct calculation of e , threaded and coupled pipe .50
m
11.6 Calculated upset and threaded mass for integral joint tubing .50
11.6.1 General.50
11.6.2 Direct calculation of e , upset and threaded pipe .51
m
11.7 Calculated upset mass .51
11.7.1 General.51
11.7.2 Direct calculation of e , upset pipe .52
m
11.8 Calculated coupling mass .52
11.8.1 General.52
11.8.2 Calculated coupling mass for line pipe and round thread casing and tubing .52
11.8.3 Calculated coupling mass for buttress thread casing .55
11.9 Calculated mass removed during threading .56
11.9.1 General.56
11.9.2 Calculated mass removed during threading pipe or pin ends .56
11.9.3 Calculated mass removed during threading integral joint tubing box ends .58
11.10 Calculated mass of upsets .59
11.10.1 General.59
11.10.2 Calculated mass of external upsets .59
11.10.3 Calculated mass of internal upsets .60
11.10.4 Calculated mass of external-internal upsets .61
12 Elongation .61
13 Flattening tests .62
13.1 Flattening tests for casing and tubing .62
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ISO/TR 10400:2018(E)

13.2 Flattening tests for line pipe.62
14 Hydrostatic test pressures .63
14.1 Hydrostatic test pressures for plain-end pipe and integral joint tubing .63
14.2 Hydrostatic test pressure for threaded and coupled pipe .64
15 Make-up torque for round thread casing and tubing .64
16 Guided bend tests for submerged arc-welded line pipe.65
16.1 General .65
16.2 Background .67
16.2.1 Values of ε .67
eng
16.2.2 Values of A .67
gbtj
17 Determination of minimum impact specimen size for API couplings and pipe .67
17.1 Critical thickness .67
17.2 Calculated coupling blank thickness .68
17.3 Calculated wall thickness for transverse specimens .71
17.4 Calculated wall thickness for longitudinal specimens .71
17.5 Minimum specimen size for API couplings .71
17.6 Impact specimen size for pipe .73
17.7 Larger size specimens .73
17.8 Reference information .74
Annex A (informative) Discussion of formulae for triaxial yield of pipe body .75
Annex B (informative) Discussion of formulae for ductile rupture .88
Annex C (informative) Rupture test procedure .126
Annex D (informative) Discussion of formulae for fracture .128
Annex E (informative) Discussion of historical collapse formulae .135
Annex F (informative) Development of probabilistic collapse performance properties.149
Annex G (informative) Calculation of design collapse strength from collapse test data .188
Annex H (informative) Calculation of design collapse strengths from production quality data.191
Annex I (informative) Collapse test procedure .205
Annex J (informative) Discussion of formulae for joint strength .211
Annex K (informative) Tables of calculated performance properties in SI units .219
Annex L (informative) Tables of calculated performance properties in USC units .221
Bibliography .223
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ISO/TR 10400:2018(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore
structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 5, Casing, tubing
and drill pipe.
This second edition cancels and replaces the first edition (ISO/TR 10400:2007), which has been
technically revised.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
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ISO/TR 10400:2018(E)

Introduction
Performance design of tubulars for the petroleum and natural gas industries, whether it is formulated
by deterministic or probabilistic calculations, compares anticipated loads to which the tubular can
be subjected to the anticipated resistance of the tubular to each load. Either or both of the load and
resistance can be modified by a design factor.
Both deterministic and probabilistic approaches to performance properties are addressed in this
document. The deterministic approach uses specific geometric and material property values to calculate
a single performance property value. The probabilistic method treats the same variables as random
and thus arrives at a statistical distribution of a performance property. A performance distribution in
combination with a defined lower percentile determines the final design formula.
Both the well design process itself and the definition of anticipated loads are currently outside the scope
of standardization for the petroleum and natural gas industries. Neither of these aspects is addressed
in this document. Rather, it serves to identify useful formulae for obtaining the resistance of a tubular
to specified loads, independent of their origin. It provides limit state formulae (see annexes) which are
useful for determining the resistance of an individual sample whose geometric and material properties
are given, and design formulae which are useful for well design based on conservative geometric and
material parameters.
Whenever possible, decisions on specific constants to use in a design formula are left to the discretion
of the reader.
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TECHNICAL REPORT ISO/TR 10400:2018(E)
Petroleum and natural gas industries — Formulae and
calculations for the properties of casing, tubing, drill pipe
and line pipe used as casing or tubing
1 Scope
This document illustrates the formulae and templates necessary to calculate the various pipe properties
given in International Standards, including
— pipe performanc
...