標準號：BS PD 970-2005
中文標準名稱：機械及相關工程用途用鍛鋼.碳、碳錳以及合金熱作或冷加工鋼的要求
英文標準名稱：Wrought steels for mechanical and allied engineering purposes - Requirements for carbon, carbon manganese and alloy hot worked or cold finished steels
標準類型：H40
發(fā)布日期：2005/1/1 12:00:00
實施日期：2005/1/1 12:00:00
中國標準分類號：H40
國際標準分類號：77.140.20
適用范圍：This Published Document specifies the technical purchase and supply requirements for the followingwrought 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:— blooms;— billets;— slabs;— bars;— rod;— flats and wide flats.NOTE These wrought steels may be supplied in the hot formed condition or as thermally treated black bar. Cold finished bar maybe subjected to pre- or post-thermal treatment.It does not specify any boron, micro-alloyed, stainless steels or any products delivered as forgings, whichare 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 ismaintained, though it is important to note that the “A”, “M” and “H” system (nominally representingAnalysis, Mechanical and Hardenability) should not be confused with other nomenclature. This appliesequally to the conventional tensile strength range designations, namely P through to Z which are still usedin this document.Certain other aspects such as requirements for steelmaking, deoxidation and grain size have been revisedto reflect modern technology.