BS 4300-15(1973) : 1973

Co-operating organizations
Foreword
Specification
1 General
1.1 Scope
1.2 Definitions
2 General requirements
2.1 General
2.2 Freedom from defects
2.3 Chemical composition
2.4 Condition
2.5 Sizes and tolerances
2.6 Selection of test samples
2.7 Mechanical tests
2.8 Retests
2.9 Certificate of compliance
2.10 Inspection
2.11 Independent test
2.12 Facilities for testing
2.13 The rounding of numbers rule
3 Specific requirements
3.1 Chemical composition
3.2 Mechanical properties
3.3 Tolerances
3.4 Normal radii for corners
Appendices
A Standard sizes of material
B Details of the international alloy designations
      and chemical composition limits for wrought
      aluminium alloys system
Tables
1 Heat-treatable materials; grouping into batches
2 Table deleted
3 Tensile test
4 Tolerances on diameter and length of round bar
      intended for use on automatic lathes
5 Tolerances on width across flats of hexagonal bar
      for nuts and bolts
6 Tolerances on length
7 Tolerances on width and diameter of bars and
      regular sections
8 Tolerances on thickness of bars and regular
      sections
9 Tolerances on open ends of channels and I-beams
10 Angular tolerances for extruded sections
11 Tolerances on wall thickness of extruded round
      tube
12 Tolerances on outside diameter of extruded round
      tube or on inside diameter of Class A and Class B
      extruded round tubing
13 Tolerances on width or width across flats of
      hollow sections
14 Tolerances on thickness of hollow sections
15 Tolerances on straightness for extruded bar,
      regular sections and extruded round tube
16 Tolerances on twist for extruded solid and hollow
      sections
17 Normal radii for corners
Figure
1 Tolerances on open ends of channels and I-beams

Describes aluminium alloy bar, extruded round tube and sections, including freedom from defects, chemical composition, condition, sizes and tolerances, selection of test samples, mechanical tests, retests, certificate of compliance, inspection, independent test, facilities for testing and the rounding of numbers rule.