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STANDARD 683-6
Fourth edition
2023-11
Heat-treatable steels, alloy steels and
free-cutting steels —
Part 6:
Hot-rolled steels for quenched and
tempered springs
Aciers pour traitement thermique, aciers alliés et aciers pour
décolletage —
Partie 6: Aciers laminés à chaud pour ressorts trempés et revenus
Reference number
ISO 683-6:2023(E)
© ISO 2023
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ISO 683-6:2023(E)
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© ISO 2023
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Published in Switzerland
ii
© ISO 2023 – All rights reserved
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ISO 683-6:2023(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification and designation . 2
4.1 Classification . 2
4.2 Designation . 2
5 Information to be supplied by the purchaser . 3
5.1 Mandatory information . 3
5.2 Supplementary or special requirements . 3
5.3 Ordering example. 3
6 Manufacturing process . 4
6.1 General . 4
6.2 Deoxidation. 4
6.3 Heat-treatment condition at delivery . 4
6.3.1 Normal delivery condition . 4
6.3.2 Particular heat treatment condition . 4
6.3.3 Particular surface condition . 4
6.4 Traceability of the cast . 4
7 Requirements .
...