BS 4360:1990

Foreword
Committees responsible
Specification
Section one. General
1 Scope
2 Definitions
3 General
4 Information to be supplied by the purchaser
5 Steelmaking process
6 Supply condition
7 Chemical composition
8 Weldability
9 Quality of finished steel
10 Identification of cast
11 Marking
12 Test certificates
13 Mass of steel
Section two. Specific requirements for dimensional and
shape tolerances
14 Tolerances for plates and strip
15 Tolerances for wide flats
16 Tolerances for flats
17 Tolerances for round and square bars
18 Tolerances for sections
Section three. Specific requirements for testing
19 Selection and identification of test samples
20 Number of tensile tests
21 Direction and position of tensile test samples
22 Tensile test pieces
23 Tensile test
24 Number of impact tests
25 Position of impact test samples
26 Impact test pieces
27 Impact tests
28 Flattening test
29 Bend tests
30 Retests
Section four. Specific requirements for weldable
structural steel plates, strip and wide flats
Section five. Specific requirements for weldable
structural steel sections (other than hollow sections)
Section six. Specific requirements for weldable
structural steel flats and round and square bars
Section seven. Specific requirements for weldable
structural steel hollow sections
Section eight. Specific requirements for weather
resistant weldable structural steels
Appendices
A Comparison between grades in this standard and
    BS 4360 : 1979 and equivalence with grades in
    Euronorms and ISO standards
B Options
C Positions of test samples for tensile test
D Position of test piece to be taken from tensile
    test samples when two rolled surfaces cannot be
    retained
E Positions of test samples for impact tests
F Indicative Charpy V-notch impact values at
    temperatures other than those given in tables 13,
    15 and 19
G Bend test for plates, strip and wide flats in
    thicknesses up to and including 25 mm
Tables
1 Permitted deviations in product analysis from
    specified ladle analysis percentages
2}
3} Tables deleted
4}
5}
6 Thickness tolerances for wide flats
7 Maximum difference in thickness in one transverse
    cross section for wide flats
8 Angular accuracy tolerances for wide flats
9 Width tolerances for flats
10 Thickness tolerances for flats
11 Size tolerances for round and square bars
12 Chemical composition (ladle analysis) for plates,
    strip and wide flats
13 Mechanical properties for plates, strip and wide
    flats
14 Chemical composition (ladle analysis) for sections
    (other than hollow sections)
15 Mechanical properties for sections (other than
    hollow sections)
16 Chemical composition (ladle analysis) for flats and
    round and square bars
17 Mechanical properties for flats and round and square
    bars
18 Chemical composition (ladle analysis) for hollow
    sections
19 Mechanical properties for hollow sections
20 Chemical composition (ladle analysis) for plates,
    strip, wide flats, flats, sections (other than
    hollow sections) and round and square bars: weather
    resistant grades
21 Mechanical properties for plates, strip, wide flats,
    flats, sections (other than hollow sections) and
    round and square bars: weather resistant grades
22 Chemical composition (ladle analysis) for hollow
    sections: weather resistant grades
23 Mechanical properties for hollow sections: weather
    resistant grades
24 Plates and wide flats: comparison with BS 4360 :
    1979
25 Sections (other than hollow sections): comparison
    with BS 4360 : 1979
26 flats and round and squre bars: comparison with
    BS 4360 : 1979
27 Hollow sections: comparison with BS 4360 : 1979
28 Plates, strip, wide flats, sections (other than
    hollow sections) and round and square bars: weather
    resistant grades: comparison with BS 4360 : 1979
29 Hollow sections: weather resistant grades:
    comparison with BS 4360 : 1979
30 Nearest equivalent grades in Euronorms and ISO
    standards
31 Maximum CEV for plates and wide flats
32 Maximum CEV for sections (other than hollow
    sections)
33 Maximum CEV for flats and round and square bars
34 Maximum CEV for hollow sections
35}
36} Tables deleted
37}
38}
39 Thickness tolerances for wide flats: Euronorm 91-
    1981 Class I
40 Thickness tolerances for wide flats: all over
41 Thickness tolerances for wide flats: all under
42 Thickness tolerances for flats: all over
43 Thickness tolerances for flats: all under
44 Size tolerances for round and square bars: all over
45 Size tolerances for round and square bars: all under
46 Indicative Charpy V-notch impact values: plates,
    strip and wide flats
47 Indicative Charpy V-notch impact values: sections
    (other than hollow sections)
48 Indicative Charpy V-notch impact values: hollow
    sections
49 Bend test requirements for plates, strip and wide
    flats in thicknesses up to and including 25 mm
50 Recommended minimum internal forming diameters for
    guidance only
Figures
1 Figure deleted
2 Thicknesses across a transverse cross section of a
    wide flat
3 Edge camber of wide flats
4 Squareness of ends of wide flats
5 Angular accuracy of wide flats
6 Location of impact test pieces
7 Positions of test samples for tensile test
8 Positions of test piece to be taken from tensile
    test samples when two rolled surfaces cannot be
    retained
9 Positions of test samples for impact tests

Requirements for steels for general structural and engineering purposes in the form of hot-rolled plates, strip, wide flats, flats and bars and for structural steel sections complying with Parts 2, 4 and 5 of BS 4848 and BS 4:Part 1.