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Description of PD 970:2005 2005This Published Document specifies the technical purchase and supply requirements for the following wrought semi-finished products manufactured from a range of carbon, carbon manganese, low alloy, free-cutting, case-hardening and through hardened steels for the following special applications:
It does not specify any boron, micro-alloyed, stainless steels or any products delivered as forgings, which are all covered by other standards (see Foreword). It does not apply to direct cast products. PD 970 is presented in the style of a European Standard and references other European Standards (e.g. test methods) wherever possible. The traditional seven digit alphanumeric UK designation is maintained, though it is important to note that the "A", "M" and "H" system (nominally representing Analysis, Mechanical and Hardenability) should not be confused with other nomenclature. This applies equally to the conventional tensile strength range designations, namely P through to Z which are still used in this document. Certain other aspects such as requirements for steelmaking, deoxidation and grain size have been revised to reflect modern technology.
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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