1、DEUTSCHE NORM February 200417580Document 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).Calcium
2、siliconTechnical delivery conditionsTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.ICS 77.100Calcium-Silicium Technische LieferbedingungenIn keeping with current practice in standards published by the International Organ
3、ization 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 the December 196
4、8 edition in that it has been completely revised.Previous editionDIN 17580: 1968-12.1 ScopeThis standard specifies requirements for calcium silicon as used for steelmaking.2 Normative referenceThis standard incorporates, by dated or undated reference, provisions from other publications. Thesenormati
5、ve 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 only when incorporated in it by amendment or revision. For undated referenc
6、es, the latestedition of the publication referred to applies.ISO 31-0 : 1992 Quantities and units Part 0: General principlesSupersedes December 1968edition.English price group 5www.din.dewww.beuth.de09.04 9572336Page 2DIN 17580 : 2004-023 Designation3.1 Standard designationThe designation of calcium
7、 silicon shall include either the name (symbol) or the material number.EXAMPLE:Designation of calcium silicon of grade CaSi (material number: 0.3650):Calcium silicon DIN 17580 CaSiorCalcium silicon DIN 17580 0.36503.2 Designation for order purposesEXAMPLE:Designation when ordering 5 000 kg of calciu
8、m silicon (CaSi; material number: 0.3650) as specified in thisstandard, particle size range (KG) 3 mm to 100 mm:5000 kg calcium silicon DIN 17580 CaSi KG 3-100or5000 kg calcium silicon DIN 17580 0.3650 KG 3-1004 Requirements4.1 CompositionThe composition of calcium silicon shall be as specified in t
9、able 1.Table 1: Composition of calcium silicon4.2 Particle sizeThe particle size range is to be specified when ordering. Table 2 gives guideline values, with any other rangesbeing subject to agreement.Table 2: Particle sizesMaterial Composition, as percentages by massDesignationname number Ca.1) Ca
10、+ Si Al CPSMin. 29 90 Calcium silicon CaSi 0.3650Max. 33 1,80 1,20 0,070 0,060Min. 29 90 Calcium silicon, lowcarbon gradeCaSiC50 0.3655Max. 33 1,80 0,50 0,070 0,0501) The calcium content shall not vary by more than 2 % within a consignment.4.3 Form suppliedCalcium silicon may be supplied in lumps up
11、 to 300 mm long and up to 25 kg in mass (commercially referredto as KG 0-300), or crushed and or screened, in which case the oversize shall not exceed 5 % and the undersize15 % (m/m).Particle size range,in mmPermissible undersize, as a per-centage of quantity suppliedPermissible oversizeFrom 3 to 10
12、0 5Less than 3 10 % (m/m) of quantity supplied.Where the material is supplied inlumps, the maximum particle sizealong two or three dimensions of alump shall not exceed 1,15 times theupper value of the range.Page 3DIN 17580 : 2004-02The surface of the material should be free from foreign matter, such
13、 as sand, slag, etc. The proportion ofmacroscopic inclusions or adhering particles shall not exceed 0,5 % (m/m) for particle sizes above 5 mm.5 AnalysisThe method of analysis shall be at the manufacturers discretion, a state-of-the-art procedure being used incases of dispute.When rounding results, t
14、he specifications of clause 6 are to be observed.6 Rounding of resultsResults as calculated and observed are to be rounded following the rules set out in Annex B of ISO 31-0. Thevalue is to be rounded in one step to the same number of places as are specified in this standard.The results shall be rou
15、nded as follows:a) if the figure following the last significant place is 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, packaging, transport and storageUnless o
16、therwise requested or agreed upon, marking, labelling and packaging shall be at the suppliers discre-tion.Where the silicon content of calcium silicon exceeds 30% (m/m), the material, with or without packaging, shallbe transported and stored so as to be protected against moisture, in accordance with relevant regulations.
