ISO 4978:2018

Steel sheet and strip for welded gas cylinders

This document specifies the characteristics of hot-rolled steel sheet and strip with a thickness up to 12 mm inclusive of the non-alloyed steels listed in Table 1, which are intended for welded gas cylinders in accordance with ISO 4706.

Produit en acier laminé à plat pour bouteilles à gaz soudées

General Information

• Status: Published
• Publication Date: 02-Aug-2018
• ICS: 77.140.30 - Steels for pressure purposes
• Technical Committee: ISO/TC 17/SC 10 - Steel for pressure purposes
• Drafting Committee: ISO/TC 17/SC 10 - Steel for pressure purposes
• Current Stage: 9060 - Close of review
• Start Date: 04-Mar-2029

Relations

• Revises: ISO 4978:1983 - Flat rolled steel products for welded gas cylinders
• Effective Date: 13-Feb-2016

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 4978
Second edition
2018-08
Steel sheet and strip for welded gas
cylinders
Produit en acier laminé à plat pour bouteilles à gaz soudées
Reference number
ISO 4978:2018(E)
©
ISO 2018

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ISO 4978:2018(E)

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ii © ISO 2018 – All rights reserved

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ISO 4978:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Information to be supplied by the purchaser. 2
5 Manufacturing process . 2
5.1 Steelmaking . 2
5.2 Delivery condition . 2
6 Technical requirements . 3
6.1 Chemical composition . 3
6.2 Mechanical properties . 4
6.3 Grain size . 4
6.4 Weldability . 4
6.5 Surface condition and soundness . 4
6.6 Dimensions and tolerances . 5
6.7 Other requirements . 5
7 Inspection . 5
7.1 Types of inspection and inspection documents . 5
7.2 Test frequency . 6
7.3 Visual inspection .
...