NF A49-400
Steel tubes. Longitudinally electric resistance welded unalloyed steel tubes 17,2 inferior or equal to D inferior or equal to 406,4 mm for the transport of pressurized fluids. Dimensions. Technical delivery conditions.
Le présent document concerne les tubes sans soudure et soudés utilisés pour les conduites de transport de fluides combustibles, dans le cas où des exigences particulières de qualité sont requises (par exemple, zones à forte densité de population).
Le présent document concerne les tubes sans soudure et soudés utilisés pour les conduites de transport de fluides combustibles, en qualité de base et il comprend des nuances d'acier jusqu'à une limite d'élasticité de 360 N/mm2.
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