Iron and steel. Case hardened alloy steels for solid highly-stressed mechanical parts. Grades. Semi-finished products and bars.

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Main informations

Collections

National standards and national normative documents

Publication date

October 1984

Number of pages

14 p.

Reference

NF A35-567

ICS Codes

77.140.10 Heat-treatable steels

77.140.60 Steel bars and rods

Classification index

A35-567

Print number

1 - 01/09/1984

Table of contents

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1 Objet
2
2 Domaine d'application
2
3 Références
2
4 Élaboration, fabrication
2
4.1 Mode d'élaboration de l'acier
2
4.2 État de livraison
3
4.3 Aspect
3
Tableau 1 - Profondeurs maximales admissibles en fonction des dimensions nominales.
3
4.4 Défauts internes
4
5 Caractéristiques des nuances
4
5.1 Caractéristiques garanties
4
Tableau 2 - caractéristiques garanties
4
Tableau 3 - composition chimique à la coulée
5
5.2 Caractéristiques additionnelles
5
5.3 Données complémentaires
5
6 Conditions générales de livraison
6
6.1 Généralités
6
6.2 Formation des lots
6
6.3 Prélèvement des échantillons
8
6.4 Forme et préparation des éprouvettes
8
6.5 Méthodes d'essais
8
Tableau 4 - variations admises
9
6.6 Interprétation des résultats
9
7 Commande
1 0
Annexes 1 - Caractéristiques mécaniques réalisables sur pièces traitées pour la cémentation
11
2 - Valeurs de dureté
12
3 - Traitement thermique des aciers pour cémentation
12
Figure 1 - Emplacement des éprouvettes dans la section d'essai
13
Figure 2 - Prélèvement des échantillons pour la mesure de la grosseur de grain.
14

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