1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21513-2 SANS 806:2008Edition 2.1Any reference to SABS 806 is deemedto be a reference to this standard(Government Notice No. 1373 of 8 Nove
4、mber 2002)SOUTH AFRICAN NATIONAL STANDARD Unwrought tough pitch coppers: Grade A tough pitch copper Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 fax: +27 12 344 1568 www.sabs.co.za SABS SANS 806:2008 Edition 2.1 Table of changes
5、 Change No. Date Scope Amdt 1 2008 Amended to change the designation of SABS standards to SANS standards, with no technical changes. Foreword This South African standard was approved by National Committee SABS TC 1078, Engineering materials Non-ferrous metals, in accordance with procedures of the SA
6、BS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in August 2008. This document supersedes SABS 806:1970 (first revision). SANS 806:2008 Edition 2.1 1 Unwrought tough pitch coppers: Grade A tough pitch copper 1 Scope 1.1 This specification covers
7、 the requirements for grade A tough pitch copper suitable for hot- and cold-working and for extrusion. NOTE The attention of users of this specification is drawn to the fact that the shape and size required must be specified in tender invitations and in the order or contract (see 3.2). 2 Definitions
8、 2.1 The definitions given in SANS 807 shall apply. 3 Requirements 3.1 Chemical composition The chemical composition of grade A tough pitch copper shall be as follows: Per cent Element minimum maximum Copper (silver being counted as copper) . 99,90 Bismuth . 0,0020 Lead 0,005 Selenium . 0,007 Tellur
9、ium . 0,003 Nickel 0,015 Antimony . 0,001 Arsenic 0,007 Iron 0,01 Tin . 0,01 Other elements (excluding oxygen), each 0,007 Total of all impurities (excluding nickel, oxygen, and silver) 0,04 SANS 806:2008 Edition 2.1 2 3.2 Shapes and sizes The requirements of subsection 3.2 of SANS 807 shall apply.
10、3.3 Freedom from defects The requirements of subsection 3.3 of SANS 807 shall apply. 4 Marking The requirements of section 4 of SANS 807 shall apply. 5 Sampling and compliance with the specification The requirements of section 5 of SANS 807 shall apply. 6 Methods of analysis The requirements of section 6 of SANS 807 shall apply. SABS
