NF A49-310

Steel tubes. Seamless precision tubes for mechanical application. Dimensions. Technical delivery conditions.

La présente norme a pour but de définir la composition chimique, les caractéristiques mécaniques, les dimensions, masses et tolérances ainsi que les conditions techniques de livraison des tubes de précision pour usages mécaniques. Les tubes ainsi définis sont utilisables à des températures inférieures à 250 °C.

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