SANS 807-2009 Unwrought tough pitch coppers Grade B tough pitch copper《未加工紫铜：B等级紫铜》.pdf

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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 978-0-626-23195-8 SANS 807:2009Edition 2.2SOUTH AFRICAN NATIONAL STANDARD Unwrought tough pitch coppers: Grade B tough pitch copper Published by SAB

4、S 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 807:2009 Edition 2.2 Table of changes Change No. Date Scope Amdt 1 2008 Amended to change the designation of SABS standards to SANS standards and to upda

5、te the definition of “acceptable”. Amdt 2 2009 Amended to delete referenced standard methods that have been withdrawn. Foreword This South African standard was approved by National Committee SABS TC 1078, Engineering materials Non-ferrous metals, in accordance with procedures of the SABS Standards D

6、ivision, in compliance with annex 3 of the WTO/TBT agreement. This document was published in December 2009. This document supersedes SANS 807:2008 (edition 2.1). A vertical line in the margin shows where the text has been technically modified by amendment No. 2. SANS 807:2009 Edition 2.2 1 Contents

7、Page Foreword 1 Scope . 3 2 Definitions 3 3 Requirements . 3 4 Marking 4 5 Sampling and compliance with the specification . 4 6 Methods of analysis . 5 SANS 807:2009 Edition 2.2 2 This page is intentionally left blank SANS 807:2009 Edition 2.2 3 Unwrought tough pitch coppers: Grade B tough pitch cop

8、per 1 Scope 1.1 This specification covers the requirements for grade B tough pitch copper not intended for hot- or cold-working but suitable for casting and for making up copper alloys. NOTE The attention of users of this specification is drawn to the fact that the shape and size required must be sp

9、ecified in tender invitations and in the order or contract (see 3.2). 2 Definitions 2.1 For the purposes of this specification the following definitions shall apply: acceptable acceptable to the authority administering this standard, or to the parties concluding the purchase contract, as relevant Am

10、dt 1 batch all cakes, slabs, billets, ingots, and ingot bars made from a single cast or furnace charge defective a cake, slab, billet, ingot, or ingot bar (as relevant) that fails in one or more respects to comply with the requirements of the specification lot that quantity of cakes, slabs, billets,

11、 ingots, or ingot bars bearing the same batch identification, from one manufacturer, submitted at any one time for inspection and testing 3 Requirements 3.1 Chemical composition The chemical composition of grade B tough pitch copper shall be as follows: Per cent Element minimum maximumCopper (silver

12、 being counted as copper) . 99,75 Bismuth . 0,005 Lead 0,02 SANS 807:2009 Edition 2.2 4 Selenium plus Tellurium . 0,015 Nickel 0,10 Antimony . 0,007 Arsenic 0,014 Iron 0,04 Tin . 0,03 Other elements (excluding oxygen), each 0,010 Total of all impurities (excluding nickel, oxygen, and silver) 0,10 3.

13、2 Shapes and sizes The copper shall be supplied in the form of cakes, slabs, billets, ingots, or ingot bars, as specified by the purchaser, and of the size required by the purchaser. 3.3 Freedom from defects Cakes, slabs, and billets shall be substantially free from harmful physical defects such as

14、shrink holes, cracks, cold sets, pits, raised edges, and other defects in casting or set. 4 Marking 4.1 The following shall be legibly stamped on or cast into each cake, slab, billet, ingot, or ingot bar: a) the manufacturers name or brand name; and b) the batch identification. 5 Sampling and compli

15、ance with the specification1)5.1 Sampling The following sampling procedure shall be applied in determining whether a lot complies with the requirements of the specification, and the sample so taken shall be deemed to represent the lot: After inspecting each item in the lot for compliance with the re

16、quirements of 3.2, 3.3 (when relevant), and section 4, take at random one cake, slab, billet, ingot, or ingot bar, as relevant. 5.2 Compliance with the specification The lot shall be deemed to comply with the requirements of the specification if, after inspecting each item in the lot for compliance

17、with the requirements of 3.2, 3.3 (when relevant), and section 4 and analysing the sample for compliance with the requirements of 3.1, no defective is found. 1) This section applies to the sampling for inspection and testing before acceptance or rejection of single lots (consignments) in cases where

18、 no information about the implementation of quality control or testing during manufacture is available to help in assessing the quality of the lot. It is also used as the procedure for adjudicating in cases of dispute. SANS 807:2009 Edition 2.2 5 6 Methods of analysis 6.1 Preparation of sample Using

19、 a wire brush, thoroughly clean the surface of the sample taken in accordance with 5.1. Drill one or more holes of diameter such as to provide enough drillings for the complete analysis2). Do not use a lubricant. Discard the drillings from the first 5 mm of depth of each hole and stop drilling at le

20、ast 5 mm away from the other side of the sample. Thoroughly mix the drillings from the hole(s) and use a magnet to remove any particles of iron which may have been introduced by the drilling. 6.2 Deleted by amendment No. 2. 6.3 Deleted by amendment No. 2. 6.4 Deleted by amendment No. 2. 6.5 Deleted

21、by amendment No. 2. 6.6 Deleted by amendment No. 2. SABS 2) For copper of the purity laid down in this specification and in view of the fact that the oxygen content is not specified, drillings may be taken from any part of the wire bar, cake, slab, billet, ingot, or ingot bar. This page has been lef

22、t blank intentionally SABS Standards Division The objective of the SABS Standards Division is to develop, promote and maintain South African National Standards. This objective is incorporated in the Standards Act, 2008 (Act No. 8 of 2008). Amendments and Revisions South African National Standards ar

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