UNI EN 755-8 : 2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ALUMINIUM AND ALUMINIUM ALLOYS - EXTRUDED ROD/BAR, TUBE AND PROFILES - PART 8: PORTHOLE TUBES, TOLERANCES ON DIMENSIONS AND FORM
23-08-2022
01-01-2008
Foreword
1 Scope
2 Tolerances on dimensions
2.1 General
2.2 Diameter - Round tube
2.3 Width, depth or width across flats - squares,
rectangles, hexagons, octagons
2.4 Wall thickness variation (eccentricity)
2.5 Length
2.6 Squareness of cut ends
3 Tolerances on form
3.1 General
3.2 Straightness
3.3 Convexity- Concavity
3.4 Twist
3.5 Angularity
3.6 Corner and fillet radii
3.7 Depth of dents for round tube
Annex A (informative) - Wall thickness variation
(eccentricity)
A.1 General
A.2 Specifying round tube sizes and tolerances
A.2.1 General
A.2.2 Wall thickness variation for tubes specified
as OD x t or ID x t
A.2.3 Wall thickness variation for tubes specified
as OD x ID
Bibliography
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