ISO 15590-1:2018
Petroleum and natural gas industries — Induction bends, fittings and flanges for pipeline transportation systems — Part 1: Induction bends
This document specifies the technical delivery conditions for bends made by the induction bending process for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623.
This document is applicable to induction bends made from seamless and welded pipe of unalloyed or low-alloy steels.
NOTE These are typically C-Mn steels or low-alloy steels that are appropriate for the corresponding level and grade of line pipe in accordance with ISO 3183.
This document specifies the requirements for the manufacture of two product specification levels (PSLs) of induction bends corresponding to product specification levels given for pipe in ISO 3183.
This document is not applicable to the selection of the induction bend PSL. It is the responsibility of the purchaser to specify the PSL, based upon the intended use and design requirements; see also ISO 3183, Introduction.
This document is not applicable to pipeline bends made by other manufacturing processes.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
5 General requirements
5.1 Units of measurement
5.2 Rounding
5.3 Conformance to this document
6 Designation
7 Pressure rating and design
8 Information that shall be supplied by the purchaser
8.1 General information
8.2 Additional information
8.3 Information on the mother pipe
9 Manufacturing
9.1 Mother pipe
9.2 Qualification test bend
9.3 Production bending
9.4 Post-bending heat treatment
9.5 Forming and sizing after bending
9.6 Strip/plate end welds
9.7 Jointers and girth welds
9.8 End preparation
10 Testing and inspection
10.1 General requirements
10.2 Extent of testing and inspection
10.2.1 Qualification test bend
10.2.2 Production bends
10.2.3 Production test bends
10.3 Chemical composition
10.4 Physical testing
10.4.1 Test pieces — General
10.4.2 Tensile testing
10.4.3 Charpy V-notch impact testing
10.4.4 Through-thickness hardness testing
10.4.5 Surface hardness testing
10.4.6 Metallographic examination
10.4.7 Crack tip opening displacement testing
10.4.8 Guided bend testing
10.4.9 Flattening tests
10.5 Non-destructive testing
10.5.1 General
10.5.2 Visual inspection
10.5.3 Weld seam testing
10.5.4 Inspection of bend ends
10.5.5 Magnetic particle testing or liquid-penetrant testing on the bend body
10.5.6 Ultrasonic testing on the bend body
10.5.7 Level of residual magnetism
10.5.8 Repairs
10.5.9 NDT personnel
10.6 Dimensions
10.7 Gauging
10.8 Hydrostatic testing
11 Inspection document
12 Marking
Annex A (normative) Manufacturing procedure specification (MPS)
Annex B (normative) PSL 2S bends ordered for sour service
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
5 General requirements
5.1 Units of measurement
5.2 Rounding
5.3 Conformance to this document
6 Designation
7 Pressure rating and design
8 Information that shall be supplied by the purchaser
8.1 General information
8.2 Additional information
8.3 Information on the mother pipe
9 Manufacturing
9.1 Mother pipe
9.2 Qualification test bend
9.3 Production bending
9.4 Post-bending heat treatment
9.5 Forming and sizing after bending
9.6 Strip/plate end welds
9.7 Jointers and girth welds
9.8 End preparation
10 Testing and inspection
10.1 General requirements
10.2 Extent of testing and inspection
10.2.1 Qualification test bend
10.2.2 Production bends
10.2.3 Production test bends
10.3 Chemical composition
10.4 Physical testing
10.4.1 Test pieces — General
10.4.2 Tensile testing
10.4.3 Charpy V-notch impact testing
10.4.4 Through-thickness hardness testing
10.4.5 Surface hardness testing
10.4.6 Metallographic examination
10.4.7 Crack tip opening displacement testing
10.4.8 Guided bend testing
10.4.9 Flattening tests
10.5 Non-destructive testing
10.5.1 General
10.5.2 Visual inspection
10.5.3 Weld seam testing
10.5.4 Inspection of bend ends
10.5.5 Magnetic particle testing or liquid-penetrant testing on the bend body
10.5.6 Ultrasonic testing on the bend body
10.5.7 Level of residual magnetism
10.5.8 Repairs
10.5.9 NDT personnel
10.6 Dimensions
10.7 Gauging
10.8 Hydrostatic testing
11 Inspection document
12 Marking
Annex A (normative) Manufacturing procedure specification (MPS)
Annex B (normative) PSL 2S bends ordered for sour service
Bibliography