BS 3059-1(1987) : 1987

Foreword
Committees responsible
Specification
1 Scope
2 Information to be supplied by the purchaser and
    options to be documented
3 Designation
4 Manufacture of the steel
5 Manufacture of the product
6 Chemical analysis
7 Final supply conditions
8 Mechanical properties
9 Visual inspection and appearance
10 Tolerances
11 Tests
12 Number, selection and preparation of samples and
    test pieces
13 Test methods
14 Retests
15 Test certificate
16 Protective coating
17 Marking
Appendices
A Designation of steel tubes in BS 3059 : Part 1 :
    1987 and the nearest equivalent designations in
    BS 3059 : Part 1 : 1978 and ISO 2604 : Parts 2 and 3
B Minimum 0.2 % proof stress (Rp0.2) values at
    elevated temperatures
C Physical properties of steel grade 320
D Preferred outside diameters and thicknesses for
    tubes appropriate to this standard and masses per
    unit length
E Eddy current testing of tubes for verification of
    leak tightness
Tables
1 Method of manufacture of tube and reference
2 Chemical composition and mechanical properties at
    room temperature
3 Permitted deviations of the product analysis from
    the specified ladle analysis
4 Tube manufacturing process and final supply
    conditions
5 Designation of steel tubes in BS 3059 : Part 1 :
    1987 and the nearest equivalent designations in
    BS 3059 : Part 1 : 1978 and ISO 2604 : Parts 2 and 3
6 Minimum 0.2 % proof stress (Rp0.2) values at
    elevated temperatures
7 Physical properties of steel grade 320
8 Preferred outside diameters and thicknesses for
    tubes appropriate to this standard and masses per
    unit length
9 Drill diameter sizes for method A
10 Notch dimensions for method B

Describes requirements for plain end, seamless and welded, low tensile carbon steel tubes, not exceeding 127 mm outside diameter and not exceeding 12.5 mm thickness for use in boilers and superheaters. Only one grade of steel is included and is designated 320. Covers information to be supplied by the purchaser and options to be documented, manufacture of the steel, manufacture of the product, chemical analysis, final supply conditions, mechanical properties, visual inspection and appearance, tolerances, tests, number, selection and preparation of samples and test pieces, test methods, retests, test certificate, protective coating and marking.