This European Standard specifies the tolerances on dimensions and form for aluminium and aluminium alloys cold drawn seamless tubes with an outside diameter (OD) from 3 mm to 350 mm (round tube, see Figure 1) or with a cross section contained within a circumscribing circle (CD) from 8 mm to 300 mm (other than round tube, see Figure 2) supplied in straight lengths. This European Standard only applies to tube produced by the seamless die\/mandrel method of extrusion (and then cold drawn to the final dimensions required). The temper designations used in this part are according to EN 515. This document applies to cold drawn, seamless tube for general engineering applications. This document does not apply to: – cold drawn tube produced by the porthole\/bridge method (EN 754-8), – tubes delivered in coils (EN 13958), – coiled tubes cut to length (EN 13958). (…)<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 24<\/td>\n | Contents Page <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 1 Scope Figure 1 \u2014 Round tube Figure 2 \u2014 Circumscribing circle for other than round tube <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 2 Normative references 3 Tolerances on dimensions 3.1 General 3.2 Diameter – Round tube <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Table 1 \u2014 Tolerances on diameter for round tube 3.3 Width, depth or width across flats – squares, rectangles, hexagons, octagons <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Table 2 \u2014 Tolerances on width, depth or width across flats 3.4 Wall thickness variation (eccentricity) <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Table 3 \u2014 Tolerances on wall thickness variation (eccentricity) 3.5 Length Table 4 \u2014 Tolerances on fixed length <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 3.6 Squareness of cut ends 4 Tolerances on form 4.1 General 4.2 Straightness Figure 3 \u2014 Measurement of the deviation from straightness <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Table 5 \u2014 Straightness tolerances 4.3 Convexity-Concavity Figure 4 \u2014 Measurement of convexity – concavity <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Table 6 \u2014 Convexity – concavity tolerances 4.4 Twist Figure 5 \u2014 Measurement of twist <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Table 7 \u2014 Twist tolerances 4.5 Angularity Figure 6 \u2014 Measurement of deviation from square <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Table 8 \u2014 Squareness tolerances for square and rectangular tubes 4.6 Corner and fillet radii 4.7 Depth of dents for round tube Table 9 \u2014 Depth of dents tolerances for round tube <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Annex A (informative) Wall thickness variation (eccentricity) A.1 General A.2 Specifying round tube sizes and tolerances A.2.1 General Figure A.1 \u2014 Minimum and maximum values of the tube wall thickness A.2.2 Wall thickness variation for tubes specified as OD \u00d7 t or ID \u00d7 t <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | A.2.3 Wall thickness variation for tubes specified as OD \u00d7 ID <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Tracked Changes. Aluminium and aluminium alloys. Cold drawn rod\/bar and tube – Seamless tubes, tolerances on dimensions and form<\/b><\/p>\n |