GB/T 150.4-2024 English PDF (GBT150.4-2024)

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GB/T 150.4-2024: Pressure vessels - Part 4: Fabrication, inspection and testing, and acceptance
GB/T 150.4-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 23.020.30
CCS J 74
Replacing GB/T 150.4-2011
Pressure vessels - Part 4.Fabrication, inspection and testing,
and acceptance
ISSUED ON. JULY 24, 2024
IMPLEMENTED ON. FEBRUARY 01, 2025
Issued by. State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
Introduction... 11
1 Scope... 13
2 Normative references... 13
3 Terms and definitions... 15
4 General... 19
5 Material re-inspection, segmentation, mark transplantation... 23
6 Cold and hot forming and assembly... 25
7 Welding... 35
8 Heat treatment... 45
9 Test pieces and specimens... 55
10 Nondestructive testing... 60
11 Pressure test and leakage test... 67
12 Hot gas circulation test... 71
13 Exit-factory requirements for pressure vessels... 73
Appendix A (Normative) Additional requirements for the fabrication, inspection,
acceptance of forged and welded pressure vessels... 76
Appendix B (Normative) Additional requirements for the fabrication, inspection,
acceptance of shrink fit pressure vessels... 80
Appendix C (Normative) Additional requirements for the fabrication, inspection,
acceptance of wrapped pressure vessels... 83
Appendix D (Normative) Additional requirements for the fabrication, inspection,
acceptance of steel ribbon wound pressure vessels... 94
Appendix E (Normative) Additional requirements for the fabrication, inspection,
acceptance of pressure vessels based on the design to prevent low-temperature brittle
fracture... 97
Pressure vessels - Part 4.Fabrication, inspection and testing,
and acceptance
1 Scope
This document specifies the requirements for the fabrication, inspection, acceptance of
steel pressure vessels.
This document applies to the fabrication, inspection, acceptance of non-alloy steel, low
alloy steel or high alloy steel base layers in steel pressure vessels, composite plate
pressure vessels, lined pressure vessels, pressure vessels with cladding layers.
This document applies to single-layer welded (including pipe-made cylinder) pressure
vessels, forged welded pressure vessels, shrink fit pressure vessels, multi-layer wrapped
(including multi-layer cylinder segment wrapped, multi-layer integral wrapped)
pressure vessels, steel ribbon wound pressure vessels.
2 Normative references
The contents of the following documents constitute essential clauses of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date applies to this document; for undated references, the
latest version (including all amendments) applies to this document.
GB/T 150.1 Pressure vessels - Part 1.General requirements
GB/T 150.2-2024 Pressure vessels - Part 2.Materials
GB/T 150.3-2024 Pressure vessels - Part 3.Design
GB/T 151 Heat exchangers
GB/T 196 General purpose metric screw threads - Basic dimensions
GB/T 197 General purpose metric screw threads - Tolerances
GB/T 228.1 Metallic materials - Tensile testing - Part 1.Method of test at room
temperature
GB/T 228.2 Metallic materials - Tensile testing - Part 2.Method of test at elevated
temperature
Pressure vessel designed by simple fatigue analysis
Pressure vessels that have been successfully used, designed according to GB/T 150.3
and approved by the technical director of the design organization, supplemented
with fatigue analysis and assessment according to the analysis design, meanwhile
meet the relevant fabrication, inspection, acceptance requirements.
3.17
Weld metal replacement
For parts and components such as heads (including cones) that are first assembled
and then hot-formed, the operation of removing the original weld metal and re-
welding after the forming is completed.
4 General
4.1 Requirements for the fabrication, inspection, acceptance of pressure vessels
4.1.1 The fabrication, inspection, acceptance of pressure vessels of different structural
forms shall be subject to additional requirements based on the requirements for the
fabrication, inspection and acceptance of single-layer welded (including pipe-made
cylinder) pressure vessels.
a) Additional requirements for the fabrication, inspection, acceptance of forged and
welded pressure vessels shall be in accordance with Appendix A;
b) Additional requirements for the fabrication, inspection, acceptance of shrink fit
pressure vessels shall be in accordance with Appendix B;
c) Additional requirements for the fabrication, inspection, acceptance of wrapped
pressure vessels shall be in accordance with Appendix C;
d) Additional requirements for the fabrication, inspection, acceptance of flat steel
ribbon wound pressure vessels shall be in accordance with Appendix D.
4.1.2 Additional requirements for the fabrication, inspection, acceptance of pressure
vessels designed to prevent low-temperature brittle fracture shall be in accordance with
Appendix E.
4.1.3 For low-temperature pressure vessels made of chromium-nickel austenitic
stainless steel (design temperature below -196 °C), the parties involved in the
fabrication shall negotiate and stipulate additional requirements for fabrication,
inspection, acceptance; the design organization shall stipulate them in the design
documents.
4.2 Basis for the fabrication, inspection, acceptance of pressure vessels
In addition to complying with the requirements of this document and design documents,
the fabrication, inspection, acceptance of pressure vessels shall also comply with the
following requirements.
a) The fabrication, inspection, acceptance of heat exchangers, spherical storage tanks,
tower vessels and horizontal vessels shall comply with GB/T 151, GB/T 12337,
NB/T 47041, NB/T 47042, respectively.
b) The fabrication, inspection, acceptance of non-ferrous metal linings, cladding
layers, composite plate claddings in pressure vessels shall comply with JB/T 4734,
NB/T 11270, JB/T 4755, JB/T 4756, NB/T 47011, respectively.
4.3 Raw materials and parts and components (including self-made, outsourced,
purchased parts and components)
4.3.1 Raw materials
4.3.1.1 Plates, pipes, forgings, bars, composite plates shall comply with the following
requirements.
a) Plates, pipes, forgings, bars shall comply with the relevant provisions of GB/T
150.2, GB/T 151, GB/T 12337, JB/T 4734, NB/T 11270, JB/T 4755, JB/T 4756,
NB/T 47011, respectively. Material suppliers shall provide material exit-factory
heat treatment process parameters. When necessary, pressure vessel fabrication
organization may propose performance requirements for materials after simulated
minimum heat process treatment and/or simulated maximum heat process
treatment.
b) Composite plates shall comply with NB/T 47002 (all parts). When heat exchange
tubes are subjected to axial compressive stress, if composite plates are used to
fabricate tube sheets, requirements for the bonding strength of the composite
plates shall be put forward; bonding tests shall be carried out in accordance with
GB/T 6396 to determine the bonding strength.
c) Nonferrous metal lining parts shall be selected in accordance with the relevant
provisions of JB/T 4734, NB/T 11270, JB/T 4755, JB/T 4756, NB/T 47011.
4.3.1.2 In addition to complying with NB/T 47018 (all parts), welding...