DIN 17562-2004 Ferrotungsten - Technical delivery conditions《钨铁 交货技术条件》.pdf

1、DEUTSCHE NORM February 200417562Document comprises 3 pages. No part of this translation may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Ferrotun

2、gstenTechnical delivery conditionsTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.ICS 77.100Ferrowolfram Technische LieferbedingungenIn keeping with current practice in standards published by the International Organizatio

3、n for Standardization(ISO), a comma has been used throughout as the decimal marker.ForewordThis standard has been prepared by the Normenausschuss Nichteisenmetalle (Nonferrous Metals StandardsCommittee), Technical Committee Ferrolegierungen.AmendmentsThis standard differs from DIN 17562, December 19

4、65 edition, and DIN 17599, June 1985 edition, in that ithas been completely revised.Previous editionsDIN 17562: 1965-12; DIN 17599: 1985-06.1 ScopeThis standard specifies requirements for ferrotungsten as used for steelmaking and foundry purposes.2 Normative referenceThis standard incorporates, by d

5、ated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the titles of the publications are listedbelow. For dated references, subsequent amendments to or revisions of any of these publications apply tothis standard

6、only when incorporated in it by amendment or revision. For undated references, the latestedition of the publication referred to applies.ISO 31-0 : 1992 Quantities and units Part 0: General principlesThis standard supersedesDIN 17562, December 1965edition, and, together withDIN 17560-1, DIN 17561 and

7、DIN 17563 to DIN 17566,February 2004 editions,supersedes DIN 17599, June1985 edition.English price group 5www.din.dewww.beuth.de09.04 9572327Page 2DIN 17562 : 2004-023 Designation3.1 Standard designationThe designation of ferrotungsten shall include either the name (symbol) or the material number.EX

8、AMPLE:Designation of ferrotungsten of grade FeW80 (material number: 0.4380):Ferrotungsten DIN 17562 FeW80orFerrotungsten DIN 17562 0.43803.2 Designation for order purposesEXAMPLE:Designation when ordering 5000 kg of ferrotungsten as specified in this standard, of grade FeW80 (materialnumber: 0.4380)

9、, particle size range (KG) 3 mm to 100 mm:5000 kg ferrotungsten DIN 17562 FeW80 KG 3-100or5000 kg ferrotungsten DIN 17562 0.4380 KG 3-1004 Requirements4.1 CompositionThe composition of ferrotungsten shall be as specified in table 1.Table 1: Composition of ferrotungsten4.2 Particle sizeThe particle s

10、ize range is to be specified when ordering. Table 2 gives guideline values, with any other rangesbeing subject to agreement.Table 2: Particle sizesParticle size range, Permissible undersize, as ain mm percentage of quantity suppliedPermissible oversize10 % (m/m) of quantity supplied.From 3 to 100 5W

11、here the material is supplied in lumps,the maximum particle size along two orthree dimensions of a lump shall notLess than 3 exceed 1,15 times the upper value of therange.4.3 Form suppliedThe material shall be free from harmful matter and shall not emit any ionizing radiation (such radiation beingun

12、derstood to be radiation higher than the background radiation at the time of receipt by the customer).Material Composition, as percentages by massname number W.1) C Cu Mn P S Si As Sb Sn As+ Sb+ SnMin. 75 FeW80 0.4380Max. 85 1,0 0,2 0,6 0,05 0,05 0,6 0,10 0,08 0,10 0,201) The tungsten content shall

13、not vary by more than 2 % within a consignment.Page 3DIN 17562 : 2004-025 AnalysisThe method of analysis shall be at the manufacturers discretion, a state-of-the-art procedure being used incases of dispute.When rounding results, the specifications of clause 6 are to be observed.6 Rounding of results

14、Results as calculated or observed are to be rounded following the rules set out in Annex B of ISO 31-0. The valueis to be rounded in one step to the same number of places as are specified in this standard.The results shall be rounded as follows:a) if the figure following the last significant place i

15、s less than five, then the latter shall remain unchanged;b) if the figure following the last significant place is five or higher, the latter shall be increased by one.7 Marking, labelling and packagingUnless otherwise requested or agreed upon, marking, labelling and packaging shall be at the suppliers discre-tion.