ISO 65:1981 Preview
Carbon steel tubes suitable for screwing in accordance with ISO 7-1
This standard was last reviewed and confirmed in 2012. Therefore this version remains current.
This second edition cancals and replaces the first edition (1973). Establishes the dimensions and charakteristics of seamless and welded steel tubes for separate series as follows: heavy series, medium series, ligth series 1. ligth series 2. Tabulates dimensions for DN 6 up to and including DN 150 as well as tolerances on the outside diameter.
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