1、ICS 77.120.40Nickelknetlegierungen mit Chrom ZusammensetzungIn keeping with current practice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.Ref. No. DIN 17742 : 2002-09English price group 06 Sales No. 000603.0
2、3DEUTSCHE NORM September 200217742 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).Translation by DIN-Sprachendienst
3、.In case of doubt, the German-language original should be consulted as the authoritative text.Wrought nickel-chromium alloysChemical compositionContinued on pages 2 to 4.SupersedesFebruary 1983 edition.ForewordThis standard has been prepared by the Normenausschuss Nichteisenmetalle (Nonferrous Metal
4、s StandardsCommittee), Technical Committee Nickelwerkstoffe.See Other relevant standards for further standards covering the composition of nickel alloys.AmendmentsThis standard differs from the February 1983 edition in that it has been revised in form and substance (withthe chemical composition bein
5、g updated) and grades NiCr25FeAlY, NiCr29Fe, NiCr25FeAlYC andNiCr28FeSiCe nickel have been included.Previous editionsDIN 1727: 1944-01; DIN 17742: 1963-06, 1973-01, 1983-02.1 ScopeThis standard specifies the chemical composition of wrought nickel-chromium alloys as used for semi-finished products an
6、d provides information about the forms normally supplied.ContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
7、3 Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Chemical composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Forms supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8、. . . . . . . . . . . . . . . . . . . . 26 Chemical analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Rounding of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Other relevant standards . . . .
9、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Page 2DIN 17742 : 2002-092 Normative referencesThis standard incorporates, by dated or undated reference, provisions from other publications. These norma-tive references are cited at the appropriate places in the text and
10、 the titles of the publications are listed below.For dated references, subsequent amendments to or revisions of any of these publications apply to thisstandard only when incorporated in it by amendment or revision. For undated references, the latest edition ofthe publication referred to applies.DIN
11、17470 Heating conductor alloy round and flat wire Technical delivery conditionsDIN 17471 Resistance alloys RequirementsDIN 17750 Nickel and wrought nickel alloy sheet, plate and strip Requirements and testingDIN 17751 Nickel and wrought nickel alloy pipes and tubes Requirements and testingDIN 17752
12、Nickel and wrought nickel alloy bars and rod Requirements and testingDIN 17753 Nickel and wrought nickel alloy wire Requirements and testingDIN EN 10095 Heat resisting steels and nickel alloysISO 31-0 : 1992 Quantities and units Part 0: General principles3 DesignationWrought nickel-chromium alloys s
13、hall be designated using either the name of the grade or its material number.EXAMPLE:Designation of a grade NiCr15Fe nickel alloy (material number: 2.4816):Nickel DIN 17742 NiCr15FeorNickel DIN 17742 2.48164 Chemical compositionThe chemical composition of wrought nickel-chromium alloys shall be as s
14、pecified in table 1.5 Forms suppliedWrought nickel-chromium alloys may be supplied in the forms specified in table 2, with the semi-finishedproducts conforming to DIN 17750 (sheet, plate and strip), DIN 17751 (pipes and tubes), DIN 17752 (bars androd), or DIN 17753 (wire).6 Chemical analysisThe anal
15、ytical method used to establish the chemical composition shall be at the manufacturers discretion. Incases of doubt, the latest method is to be used.When expressing the result, the rules given in clause 7 are to be followed.7 Rounding of resultsRounding of results obtained from the chemical analysis
16、 (by measurement or calculation) shall be based onAnnex B of ISO 31-0. Rounding shall be carried out in a single stage to the same number of places as is givenin table 1.The following rules are to be complied with:a) if the figure after the last decimal place to which the value is to be expressed is
17、 less than 5, this figureshall be deleted;b) if the figure after the last decimal place to which the value is to be expressed is 5 or higher, the figure isto be deleted and the last decimal place shall be increased by 1.Page 3DIN 17742 : 2002-09Nickel gradeNameMaterialnumberPercentages by massMin.Ma
18、x.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.3)Table1:Chemical composition of wrought nickel-chromium alloysOther Other Other Other5)4)4)4)4)4)4)4)4)2)2)2)2)1)For information only.2)It should be noted that DINEN10095 specifies slightly different p
19、ercentages.3)According to DINEN10095, the minimum carbon content is to be 0,05%.4)The maximum cobalt content may be 1,5% without this being indicated in the alloy name.5)According to DINEN10095, the minimum carbon content is to be 0,03%.Approx.densitying/cm31)Page 4DIN 17742 : 2002-09Table 2: Forms
20、of nickel alloys suppliedNickel gradeNameMaterialnumberApplicationProduct formStripSheet,platePipes,tubesBars,rodWire ForgingsFurnacecomponentsPower stationelements,process plantGas turbinesFurnace compo-nents, heatingconductorsHeat and corro-sion-resistantcomponentsCorrosion-resis-tant componentsHe
21、at and corro-sion-resistantcomponentsHeating conduc-tors, resistorsFurnace compo-nents, heatingconductorsResistorsFurnacecomponentsFlame tubes ofgas turbines,heat-resistantcomponentsComponenetssubject to creepruptureNOTE: There are no DIN Standards specifying the products marked (X). The properties
22、of products marked Xare dealt with in the standards given in clause 5.1) See DIN 17470 for heating conductor alloys and DIN 17471 for resistance alloys.Other relevant standardsDIN 17740 Wrought nickel Chemical compositionDIN 17741 Low-alloy wrought nickel alloys Chemical compositionDIN 17743 Wrought nickel-copper alloys Chemical compositionDIN 17744 Wrought nickel-chromium-molybdenum alloys Chemical compositionDIN 17745 Wrought nickel-iron alloys Chemical composition1)1)1)1)1)1)1)1)
