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1、International Standard ) 6759 0 * 4 4!% b) reference to this International Standard; c) dimensions in millimetres (outside diameter and thickness); d) steel type. Example : Tube complying with IS0 6759, having an outside diameter of 20 mm and a thickness of 2 mm, made of steel TS 5 will be designate
2、d by : Tube IS0 6759 - 20 x 2 - TS 5 5.2 This International Standard provides for some alter- natives. The purchaser shall state in the order the require- ments referring thereto; if no indication is given, delivery will be according to manufacturer s choice. 2 Copyright International Organization f
3、or Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:47:20 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6769-1660 (E) Annex Metric dimensions corresponding to inch dimensions It is reco
4、gnized that the dimensions in the table below may be required when re-tubing existing heat exchangers to satisfy the critical tube to tube-sheet clearances, particularly when the latter were originally produced in inch sizes. These dimensions are interchangeable with corresponding inch dimensions. T
5、he conditions of delivery (in particular tolerances on thicknesses) shall be subject to agreement between manufacturer and purchaser. Outside diameters I I I I I I 50,8 X X X 1) Only for stainless steel tubes. NOTE - The masses are to be calculated in accordance with IS0 4200. 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:47:20 MDTNo reproduction or networking permitted without license from IHS -,-,-