ISO 9328-3:2018
Steel flat products for pressure purposes — Technical delivery conditions — Part 3: Weldable fine grain steels, normalized
ISO 9328-3:2018 specifies the requirements for flat products for pressure equipment made of weldable fine grain steels as specified in Tables A.1 and B.1. The requirements and definitions of ISO 9328‑1 also apply to this document.
NOTE 1 Fine grain steels are understood as steels with a ferritic grain size of 6 or finer when tested in accordance with ISO 643.
NOTE 2 This document offers the possibility to specifying products in accordance with European design codes and ASME-type design codes.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
4.1 Classification
4.2 Designation
5 Information to be supplied by the purchaser
5.1 Mandatory information
5.2 Options
5.3 Example for ordering
6 Requirements
6.1 Steelmaking process
6.2 Delivery condition
6.3 Chemical composition
6.4 Mechanical properties
6.5 Surface condition
6.6 Internal soundness
6.7 Weldability
6.8 Dimensions and tolerances
6.9 Calculation of mass
6.10 Resistance to hydrogen-induced cracking
7 Inspection
7.1 Types of inspection and inspection documents
7.2 Tests to be carried out
7.3 Retests, sorting and reprocessing
8 Sampling
9 Test methods
10 Marking
Annex A (normative) Chemical composition and mechanical properties of products delivered in accordance with European design codes
Annex B (normative) Chemical composition and mechanical properties of products delivered in accordance with ASME-type design codes
Annex C (informative) Steel designations in accordance with this document and designation of comparable steel grades in national or regional standards
Annex D (informative) Evaluation of resistance to hydrogen-induced cracking
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
4.1 Classification
4.2 Designation
5 Information to be supplied by the purchaser
5.1 Mandatory information
5.2 Options
5.3 Example for ordering
6 Requirements
6.1 Steelmaking process
6.2 Delivery condition
6.3 Chemical composition
6.4 Mechanical properties
6.5 Surface condition
6.6 Internal soundness
6.7 Weldability
6.8 Dimensions and tolerances
6.9 Calculation of mass
6.10 Resistance to hydrogen-induced cracking
7 Inspection
7.1 Types of inspection and inspection documents
7.2 Tests to be carried out
7.3 Retests, sorting and reprocessing
8 Sampling
9 Test methods
10 Marking
Annex A (normative) Chemical composition and mechanical properties of products delivered in accordance with European design codes
Annex B (normative) Chemical composition and mechanical properties of products delivered in accordance with ASME-type design codes
Annex C (informative) Steel designations in accordance with this document and designation of comparable steel grades in national or regional standards
Annex D (informative) Evaluation of resistance to hydrogen-induced cracking
Bibliography