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BS ISO 15590-2:2021

BS ISO 15590-2:2021

$167.15

Petroleum and natural gas industries. Factory bends, fittings and flanges for pipeline transportation systems – Fittings

Published By Publication Date Number of Pages
BSI 2021 38
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This document specifies the technical delivery conditions for unalloyed or low-alloy steel seamless and welded pipeline fittings for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623 .

This document is applicable to welding-end fittings such as elbows, caps, tees, single or multiple extruded headers, reducers, and transition sections made from seamless and welded pipe of unalloyed or low-alloy steels.

This document specifies two classes of fitting one related to material used in non-sour service and one for material to be use in sour service environment as shown in Table 1.

Table 1
Fitting class and service

This document is not applicable to the selection of the fitting class.

This document is not applicable to the materials for, or the attachment of, factory-welded extensions.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
9 Introduction
11 1 Scope
2 Normative references
13 3 Terms and definitions
14 4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
15 5 Designation of fittings
6 Pressure rating and design
6.1 General
16 6.2 Tees
7 Information to be supplied by the purchaser
7.1 General information
7.2 Additional information
17 8 Manufacturing
8.1 Manufacturing procedure specification
8.2 Starting material
18 8.3 Fitting manufacture
8.3.1 Forming
8.3.2 Welding
8.3.3 Heat treatment
8.3.4 End preparation
20 9 Testing and inspection
9.1 General requirements
21 9.2 Extent of testing and inspection
23 9.3 Chemical composition
9.4 Mechanical testing
9.4.1 Preparation of test pieces
9.4.2 Tensile testing
24 9.4.3 Charpy V-notch impact testing
26 9.4.4 Through-thickness hardness testing
27 9.4.5 Surface hardness testing
9.4.6 Metallographic examination
9.4.7 HIC testing
9.4.8 SSC testing
9.4.9 CTOD testing
9.4.10 Guided weld bend testing
28 9.5 Non-destructive testing
9.5.1 NDT procedures and personnel
9.5.2 Condition of fittings
9.5.3 Treatment of imperfections
29 9.5.4 Fitting ends
30 9.5.5 Weld seams
9.5.6 Guide bar attachment welds
9.5.7 Fitting body
9.5.8 Residual magnetism
9.6 Dimensions
9.7 Gauging
9.8 Hydrostatic testing
10 Inspection document
11 Marking
32 Annex A (normative) Design calculations
34 Annex B (normative) Proof test
37 Bibliography

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BS ISO 15590-2:2021
$167.15