1、ICS 77.120.40Nickelknetlegierungen mit Molybdn und 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 17744 : 2002-09English price group 06 Sales
2、No. 000603.03DEUTSCHE NORM September 200217744 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-Sp
3、rachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.Wrought nickel-chromium-molybdenum alloysChemical compositionContinued on pages 2 to 5.SupersedesFebruary 1983 edition.ForewordThis standard has been prepared by the Normenausschuss Nichteisenme
4、talle (Nonferrous Metals 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 ch
5、emical composition being updated), two grades have been dropped and 13 grades have been in-cluded.Previous editionsDIN 17744: 1973-01, 1983-02.1 ScopeThis standard specifies the chemical composition of wrought nickel-chromium-molybdenum alloys as usedfor semi-finished products and provides informati
6、on about the forms normally supplied.ContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Designation . . .
7、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Chemical composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Forms supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8、. . . . . . . . . . 26 Chemical analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Rounding of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Other relevant standards . . . . . . . . . . . . . .
9、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Page 2DIN 17744 : 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 the titles of the p
10、ublications 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 17750 Nickel and wro
11、ught nickel alloy sheet, plate and strip Requirements and testingDIN 17751 Nickel and wrought nickel alloy pipes and tubes Requirements and testingDIN 17752 Nickel and wrought nickel alloy bars and rod Requirements and testingDIN 17753 Nickel and wrought nickel alloy wire Requirements and testingDIN
12、 EN 10095 Heat resisting steels and nickel alloysISO 31-0 : 1992 Quantities and units Part 0: General principles3 DesignationWrought nickel-chromium-molybdenum alloys shall be designated using either the name of the grade or itsmaterial number.EXAMPLE:Designation of a grade NiMo28 nickel alloy (mate
13、rial number: 2.4617):Nickel DIN 17744 NiMo28orNickel DIN 17744 2.46174 Chemical compositionThe chemical composition of wrought nickel-chromium-molybdenum alloys shall be as specified in table 1.5 Forms suppliedWrought nickel-chromium-molybdenum alloys may be supplied in the forms specified in table
14、2, with the semi-finished products conforming to DIN 17750 (sheet, plate and strip), DIN 17751 (pipes and tubes), DIN 17752(bars and rod), or DIN 17753 (wire).6 Chemical analysisThe analytical method used to establish the chemical composition shall be at the manufacturers discretion. Incases of doub
15、t, 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 (by measurement or calculation) shall be based onAnnex B of ISO 31-0. Rounding shall be carried out in a single s
16、tage 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 less than 5, this figureshall be deleted;b) if the figure after the last decimal place to which the value is to b
17、e expressed is 5 or higher, the figure isto be deleted and the last decimal place shall be increased by 1.Page 3DIN 17744 : 2002-09Nickel gradeNameMaterialnumberPercentages by massMin.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.
18、Min.Max.Min.Max.Min.Max.Min.Max.Table1:Chemical composition of wrought nickel-chromium-molybdenum alloysOther Other Other Other Other Other Other Other Other Other Other Other Other3)2)2)4)Other Other Other OtherApprox.density ing/cm31)2)2)1)For information only.2)The titanium and aluminium content
19、shall total 2,4 to 2,8%.3)It should be noted that DINEN10095 specifies slightly different percentages.4)According to DINEN10095, the minimum carbon content is to be 0,03%.Page 4DIN 17744 : 2002-09Table 2: Forms of nickel alloys suppliedNickel gradeNameMaterialnumberApplicationStripSheet,platePipes,t
20、ubesBars,rodWire ForgingsCorrosion-resistantcomponentsHighly heat-resistantcomponentsCorrosion-resistantcomponentsHighly heat-resistantcomponentsCorrosion-resistantcomponentsHighly heat-resistantcomponentsCorrosion-resistantcomponentsHighly heat-resistantcomponentsCorrosion-resistantcomponentsHeat a
21、nd highlycorrosion-resistantcomponentsCorrosion-resistantcomponentsNOTE: There are no DIN Standards specifying the products marked (X). The properties of products marked Xare dealt with in the standards given in clause 5.Page 5DIN 17744 : 2002-09Other relevant standardsDIN 17740 Wrought nickel Chemical compositionDIN 17741 Low-alloy wrought nickel alloys Chemical compositionDIN 17742 Wrought nickel-chromium alloys Chemical compositionDIN 17743 Wrought nickel-copper alloys Chemical compositionDIN 17745 Wrought nickel-iron alloys Chemical composition
