Copper and copper alloy semi-products. Cold formed lead brass hollon bars. Tolerances and dimensions.

Main informations

Collections

National standards and national normative documents

Publication date

June 1977

Number of pages

4 p.

Reference

NF A51-437

ICS Codes

77.150.30 Copper products

Classification index

A51-437

Print number

1 - 01/07/1977

Standard replaced by (1)

NF EN 12168

June 1998

Standard Cancelled

Copper and copper alloys - Hollow rod for free machining purposes

Le présent document fixe la composition, les caractéristiques mécaniques et les tolérances dimensionnelles des barres creuses en cuivre et alliages de cuivre spécialement destinées au décolletage. Il définit également l'échantillonnage et les méthodes d'essai permettant de contrôler ces caractéristiques.

Table of contents

1 GÉNÉRALITÉS
2
1.1 OBJET
2
1.2 DOMAINE D'APPLICATION
2
2 DÉSIGNATION
2
3 DIMENSIONS
2
3.1 DIAMÈTRE EXTÉRIEUR OU DIMENSION SUR PLATS COURANT
2
3.2 SECTION CIRCULAIRE INTÉRIEURE
3
3.3 ÉPAISSEUR
3
3.4 LONGUEUR
3
4 TOLÉRANCES
3
4.1 DIAMÈTRE EXTÉRIEUR OU DIMENSION SUR PLATS
3
4.2 DIAMÈTRE INTÉRIEUR
4
4.3 ÉPAISSEUR
4
4.4 EXCENTRATION
4
4.5 LONGUEUR FIXE
4
4.6 RECTITUDE
4
4.7 VRILLAGE
4

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