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Description of BS 5046:1974 19741.1 This British Standard provides data for the estimation of the equivalent diameters of pieces of steel of relatively simple shape (hereafter referred to as ‘objects’). The information is not confined to one type of product, e.g. forgings as distinct from castings or rolled plate, but refers to all objects undergoing a cooling process from an elevated temperature down to ambient temperature by being allowed to stand in still air or by immersion in oil or water. 1.2 The main application of this standard is to the hardening of steels, i.e. to those heat-treatments intended to develop certain desired mechanical properties. It may also be applied to other heat-treatment operations involving similar cooling conditions, where the concept of ‘equivalent diameter’ (as defined in 2.2) is still relevant. 1.3 This standard applies to the following shapes:
1.4 Guidance for the estimation of equivalent diameters for some other miscellaneous shapes is given in Appendix C. Details of the basis used for the calculation have been included in Appendix A.
Terminology, tables of equivalent diameters for cylinders and discs, rectangular sections, tubes, and rings. Combinations of 2 or 3 cylinders with common axis. Appendices give information on basis of calculation of the tables, two and three cylinder problems, miscellaneous shapes.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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