DIN 17745-2002 Wrought alloys of nickel and iron - Chemical composition《镍铁精制合金 化学成分》.pdf

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1、ICS 77.150.40Knetlegierungen aus Nickel und Eisen 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 17745 : 2002-09English price group 07 Sales No. 000

2、703.03DEUTSCHE NORM September 200217745 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-Sprachend

3、ienst.In case of doubt, the German-language original should be consulted as the authoritative text.Wrought nickel-iron alloysChemical compositionContinued on pages 2 to 7.SupersedesJanuary 1973 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 January 1973 edition as follows:a) The standard has been revised in form and substance (with the alloys cl

5、assified into soft magnetic andbimetallic materials).b) Ten nickel-iron alloys have been included.c) Properties of nickel-iron alloys have been specified and information on the use of such alloys isprovided.d) Tolerances on the coefficient of linear thermal expansion are specified and the thermal be

6、haviour ofbimetallic materials is shown graphically.Previous editionsDIN 1727: 1944-01; DIN 17745: 1963-06, 1973-01.1 ScopeThis standard specifies the chemical composition of wrought nickel-iron alloys with specific magneticproperties and thermal behaviour as used for semi-finished products, and pro

7、vides information about theforms normally supplied.ContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Desi

8、gnation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Chemical composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Forms supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9、. . . . . . . . . . . . . . . . . 26 Chemical analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Rounding of results . . . . .

10、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Other relevant standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Page 2DIN 17745 : 2002-092 Normative referencesThis standard incorporates, by dated or undated reference, p

11、rovisions from other publications. These norma-tive references are cited at the appropriate places in the text and 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

12、it by amendment or revision. For undated references, the latest edition ofthe publication referred to applies.DIN 17405 Soft magnetic materials for d.c. relays Technical delivery conditionsIEC 60740-2 Laminations for transformers and inductors for use in telecommunication and electronicequipmentISO

13、31-0 : 1992 Quantities and units Part 0: General principles3 DesignationWrought nickel-iron alloys shall be designated using either the name of the grade or its material number.EXAMPLE:Designation of a grade NiFe45 nickel alloy (material number: 2.4472):Nickel DIN 17745 NiFe45orNickel DIN 17745 2.44

14、724 Chemical compositionThe chemical composition of wrought nickel-iron alloys shall be as specified in tables 1 and 2.5 Forms suppliedWrought nickel-iron alloys may be supplied in the form of sheet, plate, strip, slit strip, pipes and tubes, barsand rod, or wire. See tables 3 and 4 for recommended

15、applications.6 Chemical analysisThe analytical 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 8 are to be followed.7 Properties7.1 Bimetallic materials

16、The coefficient of linear thermal expansion is a function of the chemical composition and the heat treatmentcondition of the material. It shall lie within the tolerances specified in table 5. Figure 1 shows the dependenceof the coefficient on the service temperature.7.2 Soft magnetic materialsThe ma

17、gnetic properties of nickel-iron alloys in d.c. applications are described in DIN 17405. They are adverselyaffected by the formation of eddy currents at high frequencies as the electrical conductivity and the materialthickness increase in magnitude.8 Rounding of resultsRounding of results obtained f

18、rom the chemical analysis (by measurement or calculation) shall be based onAnnex B of ISO 31-0. Rounding shall be carried out in one 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

19、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 be expressed is 5 or higher, the figure isto be deleted and the last decimal place shall be increased by 1.Page 3DIN 17745 : 2002-09Table 1: Chemical compositio

20、n of soft magnetic materialsNickel gradeNameMaterialnumberPercentages by massApprox.densitying/cm31)Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.OtherOtherOtherOther2)3)2)4)3)3)5)5)5)1) For information only.2) When ordering the material, the intended use is to be indicated since t

21、he alloy can be supplied either assoft magnetic or bimetallic material (with slightly differing compositions).3) From DIN 17405.4) Designated by E31 in IEC 60740-2.5) Depending on its properties and intended use, the material will be designated differently (e.g. E11 as inIEC 60740-2, RNi2 and RNi5 a

22、s in DIN 17405.OtherOtherOtherOtherPage 4DIN 17745 : 2002-09Table 2: Chemical composition of bimetallic materialsNickel gradeNameMaterialnumberPercentages by massApprox.densitying/cm32)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.OtherOtherO

23、therOtherOtherOtherOtherOtherOtherOtherOtherOtherOther3)4)3)4)4)4)1)1)1) If supplied in powder form, it is possible that the alloy will not contain manganese or silicon.2) For information only.3) When ordering the material, the intended use is to be indicated since the alloy can be supplied eitheras

24、 soft magnetic or bimetallic material (with slightly differing compositions).4) The thermal behaviour of the material can be controlled by changing the nominal nickel content withintight limits.Page 5DIN 17745 : 2002-09Table 3: Use of soft magnetic materialsNickel gradeNameMaterialnumberProperties A

25、pplicationSaturation magnetization highlytemperature-dependentHigh resistivity, low lossesLow production costs, multi-purpose, low-duty applicationsHigh permeability, low coercivefield strengthHigh initial and maximumpermeability, high saturationmagnetizationVery high initial and maximumpermeability

26、, very low coercivefield strengthThermal compensation inpermanent magnets, thermalcircuit-breakersLaminations at high frequenciesScreeningRelay components, transformersTransducers, totalizing currenttransformers for residual currentdevicesTotalizing current transformers forresidual current devices,

27、magneticheadsTable 4: Use of bimetallic materialsNickel gradeNameMaterialnumberApplicationAlloy with low to very low coefficient of linear thermal expansion, passiveelements of thermocouples and lens masks for television tubesInserts for fusing into soft glass, glass/ceramic-metal-jointsInserts for

28、fusing into hard glass, glass/ceramic-metal-jointsInserts for fusing into soft glassPage 6DIN 17745 : 2002-09Table 5: Tolerances on the coefficient of linear thermal expansion of bimetallic materials forselected temperature rangesCoefficient ofName of alloyMaterial Temperature linear thermalRemarksn

29、umber range expansion,in 106 K1Variants with a coefficient of 0,4 106K1Ni 36 1.3912 AT to 100 C 1,2 to 1,8(resulting fromamodified chemical compositionand additional heat treatment) are available onrequest.Ni 38 1.3913 AT to 150 C 3,0 to 3,8 Ni 42 1.3917 AT to 300 C 4,0 to 5,8Tolerances will be clos

30、er if chemical compositionkeeps within closer limits.Ni 46 1.3920 AT to 300 C 7,1 to 8,4Tolerances will be closer if chemical compositionkeeps within closer limits.Ni 48 1.3922 AT to 400 C 8,3 to 8,9 NiCr 42 6 1.3946 AT to 400 C 9,6 to 10,4 NiCo 29 18 1.3981 AT to 400 C 4,6 to 5,6Tolerances will be

31、closer if chemical compositionkeeps within closer limits.Variants with no martensite (except for isolatedacicular martensite) down to 196 C areavailable on request.NiCo 28 23 1.3982 AT to 400 C 6,2 to 7,8Tolerances will be closer if chemical compositionkeeps within closer limits.No martensite down t

32、o 196 C (except forisolated acicular martensite).NiFe45 2.4472 AT to 400 C 11,1 to 11,7 NiFe46 2.4475 AT to 400 C 9,8 to 10,6 NiFe47 2.4478 AT to 400 C 9,7 to 10,5 NiFe48Cr 2.4480 AT to 400 C 9,9 to 10,7 NiFe47Cr6 2.4486 AT to 400 C 10,0 to 10,8 AT ambient temperature.NOTE: Tolerances relate to the

33、annealed condition (e.g. annealed in an inert atmosphere at a temperaturefrom 900 C to 1 100 C, a rest period of 15 minutes to one hour and successive slow cooling (at 5 K orless per minute, down to less than 300 C).Page 7DIN 17745 : 2002-09Figure 1: Mean coefficient of linear thermal expansion, a,

34、of bimetallic materials in the annealedcondition as a function of temperature (examples)Other 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 17744 Wrought nickel-chromium-molybdenum alloys Chemical compositionTemperature, in C (reference temperature: 20 C)