BS 6363(1983) : 1983

Foreword
Committees responsible
Specification
1 Scope
2 Symbols
3 Designation
4 Information to be supplied by the purchaser
5 Manufacture of the steel
6 Manufacture of the product
7 Chemical composition
8 Mechanical properties
9 Weldability
10 Appearance and soundness
11 Dimensions and sectional properties
12 Tolerances
13 Inspection
14 Testing
15 Test methods
16 Retests
17 Manufacturer's certificate
18 Protective coating
19 Marking
Appendix
A Grades of strip with required minimum mechanical
    properties which meet the requirements of table 1
Tables
1 Chemical composition and mechanical properties
2 Permitted deviation from specified composition
3 Tolerances
4 Circular hollow sections
5 Square hollow sections
6 Rectangular hollow sections
Figures
1 Limiting position for measuring the dimensions
    across opposite faces of square and rectangular
    hollow sections
2 Measurement of concavity/convexity of faces of
    square and rectangular hollow sections

Describes the dimensions, tolerances and properties of the following longitudinally welded cold formed hollow sections for structural applications, all in thicknesses from 1.6 mm to 6.3 mm, circular from 21.3 mm to 193.7 mm outside diameter, square, from 20 mm x 20 mm to 150 mm x 150 mm outside dimensions, rectangular, from 50 mm x 25 mm to 200 mm x 100 mm outside dimensions.