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API Spec 5L:2012
Specification for Line Pipe, Forty-fifth Edition, Includes Errata (2015)
180 стр.
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Разработчик:
Зарубежные/API
Описание

This Standard specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.
This Standard is not applicable to cast pipe.

This product references:

ISO 148-1:2009 - Metallic materials - Charpy pendulum impact test - Part 1: Test method ISO 404:1992 - Steel and steel products - General technical delivery requirements ISO 2566-1:1984 - Steel - Conversion of elongation values - Part 1 : Carbon and low alloy steels ISO 4885:1996 - Ferrous products - Heat treatments - Vocabulary ISO 5173:2009 - Destructive tests on welds in metallic materials - Bend tests ISO 6506-1:2005 - Metallic materials - Brinell hardness test - Part 1: Test method ISO 6506-4:2005 - Metallic materials - Brinell hardness test - Part 4: Table of hardness values ISO 6506-2:2005 - Metallic materials - Brinell hardness test - Part 2: Verification and calibration of testing machines ISO 6506-3:2005 - Metallic materials - Brinell hardness test - Part 3: Calibration of reference blocks ISO 6507-1:2005 - Metallic materials - Vickers hardness test - Part 1: Test method ISO 6507-2:2005 - Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines ISO 6507-3:2005

Contents

1 Scope

2 Conformity

2.1 Units of measurement Rounding

2.3 Compliance to this Standard

3 Normative references

4 Terms and definitions

5 Symbols and abbreviated terms

5.1 Symbols

5.2 Abbreviated terms

6 Pipe grade, steel grade and delivery condition

6.1 Pipe grade and steel grade

6.2 Delivery condition

7 Information to be supplied by the purchaser

7.1 General information

7.2 Additional information

8 Manufacturing

8.1 Process of manufacture

8.2 Processes requiring validation

8.3 Starting material

8.4 Tack welds

8.5 Weld seams in COW pipe

8.6 Weld seams in SAW pipe

8.7 Weld seams in double-seam pipe

8.8 Treatment of weld seams in EW and LW pipes

8.9 Cold sizing and cold expansion

8.10 Coil/plate end welds

8.11 Jointers

8.12 Heat treatment

8.13 Traceability

9 Acceptance criteria

9.1 General

9.2 Chemical composition

9.3 Tensile properties

9.4 Hydrostatic test

9.5 Bend test

9.6 Flattening test

9.7 Guided-bend test

9.8 CVN impact test for PSL 2 pipe

9.9 DWT test for PSL 2 welded pipe

9.10 Surface conditions, imperfections and defects

9.11 Dimensions, mass and tolerances

9.12 Finish of pipe ends

9.13 Tolerances for the weld seam

9.14 Tolerances for mass

9.15 Weldability of PSL 2 pipe

10 Inspection

10.1 Types of inspection and inspection documents

10.2 Specific inspection

11 Marking

11.1 General

11.2 Pipe markings

11.3 Coupling markings

11.4 Marking of pipe to multiple grades

11.5 Thread identification and certification

11.6 Pipe processor markings

12 Coatings and thread protectors

12.1 Coatings and linings

12.2 Thread protectors

13 Retention of records

14 Pipe loading

Annex A (normative) Specification for welded jointers

Annex B (normative) Manufacturing procedure qualification for PSL 2 pipe

Annex C (normative) Treatment of surface imperfections and defects

Annex D (normative) Repair welding procedure

Annex E (normative) Non-destructive inspection for other than sour service or offshore service

Annex F (normative) Requirements for couplings (PSL 1 only)

Annex G (normative) PSL 2 pipe with resistance to ductile fracture propagation

Annex H (normative) PSL 2 pipe ordered for sour service

Annex I (normative) Pipe ordered as “Through the Flowline” (TFL) pipe

Annex J (normative) PSL 2 pipe ordered for offshore service

Annex K (normative) Non-destructive inspection for pipe ordered for sour service and/or offshore service

Annex L (informative) Steel designations

Annex M [Removed]

Annex N (informative) Identification/explanation of deviations

Annex O (informative) Use of the API Monogram by Licensees

Annex P (informative) Equations for Threaded and Coupled Pipe and Background Equations for Guided Bend and CVN Test Specimens

Bibliography