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BS 5046:1974
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The latest, up-to-date edition.
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Method for the estimation of equivalent diameters in the heat treatment of steel
Hardcopy , PDF
English
29-03-1974
Co-operating organizations
Foreword
Method
1 Scope
2 Terminology
3 Tables of equivalent diameters
3.1 General
3.2 Cylinders and discs
3.3 Rectangular sections, including plates
3.4 Tubes and rings
3.5 Shapes consisting of combinations of 2 or 3
cylinders with common axis
Appendices
A Information on the basis of calculation of the
tables
B Two- and three-cylinder problems
C Miscellaneous shapes
Tables
1 Equivalent diameters for cylinders and discs, air
cooled
2 Equivalent diameters for cylinders and discs, oil
quenched
3 Equivalent diameters for cylinders and discs, water
quenched
4 Equivalent diameters for rectangular sections, air
cooled
5 Equivalent diameters for rectangular sections, oil
quenched
6 Equivalent diameters for rectangular sections,
water quenched
7 Tubes, air cooled: f factors to be applied to wall
thickness, y
8 Tubes, oil quenched: f factors to be applied to
wall thickness, y
9 Tubes, water quenched: f factors to be applied to
wall thickness, y
10 Rings, air cooled: f factors to be applied to axial
thickness, z
11 Rings, oil quenched: f factors to be applied to
axial thickness, z
12 Rings, water quenched: f factors to be applied to
axial thickness, z
13 Values for f for varying heat-transfer factors
Figures
1 Two-cylinder objects: stages in calculation
2a Two-cylinder objects: factor f when E0 > or = d
2b Two-cylinder objects: factor f when E0 < or = d
3 Three-cylinder objects
4 f factors for cylinders of finite length
5 f factors for rectangular sections of infinite
length
6 f factors for discs
7 Computed and estimated equivalent diameters in
relation to length of smaller diameter cylinder
8 Equivalent diameters in relation to Dl/d
9 Three cylinder object, middle cylinder having
smallest diameter
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