1、Designation: B 327 01 (Reapproved 2005)Standard Specification forMaster Alloys Used in Making Zinc Die Casting Alloys1This standard is issued under the fixed designation B 327; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the ye
2、ar of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers aluminumbase and zincbase master alloys used to make zinc die-casting alloys. Alloyc
3、ompositions specified for aluminumbase master alloys (hard-eners) are designated as shown in Table 1. Alloy compositionspecified for the zinc-base master alloy is designated as shownin Table 2.1.2 Aluminum alloy hardeners are added to Special HighGrade zinc (per Specification B6) in the proper alloy
4、ing ratios,as shown in Table 1, to produce zinc alloys for die casting.1.3 Zinc-base master alloy is added to Special High Gradezinc (per Specification B6) in the proper alloying ratio, asshown in Table 3, to produce zinc alloy for die casting.1.4 Master alloys may be supplied in the form of shot, b
5、ar,ingot or jumbo ingot as specified by the purchaser.1.5 The values stated in inch-pound units are standard. TheSI equivalents of inch-pound units are for information only.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibili
6、ty of the user of this standard to become familiarwith all hazards including those identified in the appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and determine the applicability ofregulator
7、y limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on dateof order acceptance form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B6 Specification for ZincB 899 Terminology Relating to Non-ferrous Metals andAlloysB 90
8、8 Practice for the Use of Color Codes for Zinc CastingAlloy IngotE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for ChemicalAnalysis ofAluminum andAluminum-Base AlloysE88 Practice for Sampling Nonferrous Metals and Alloysin Cast For
9、m for Determination of Chemical CompositionE 101 Test Method for Spectrographic Analysis of Alumi-num and Aluminum Alloys by the Point-to-Plane Tech-nique3E 227 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by thePoint-to-Plane Technique3E 527 Practice for Nu
10、mbering Metals and Alloys (UNS)E 536 Test Methods for ChemicalAnalysis of Zinc and ZincAlloys3. Terminology3.1 Terms shall be defined in accordance with TerminologyB 899.4. Ordering Information4.1 Orders for master alloys under this specification shallinclude the following information:4.1.1 Quantity
11、,4.1.2 Alloy (Table 1 or Table 2),4.1.3 Form: that is, shot, bar, ingot or jumbo ingot,4.1.4 Size: that is, maximum shot size or size of bar, ingot,or jumbo ingot,4.1.5 Unit weight: that is, nominal weight of shot per bag ornominal weight of each bar, ingot, or jumbo ingot,4.1.6 Markings on shot bag
12、s, bars, ingot or jumbo ingot,4.1.7 Palletizing, if required: means of palletizing andmaximum weight per pallet load,4.1.8 Place of inspection (Section 8), and4.1.9 Specification number and date.5. Materials and Manufacture5.1 The material may be made by any suitable process.5.2 The material covered
13、 by this specification shall be ofuniform quality and shall be free of dross, flux, or otherharmful contamination. Also, if the material is in shot form, it1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of Subcommit
14、teeB02.04 on Zinc and Cadmium.Current edition approved Nov. 1, 2005. Published February 2006. Originallyapproved in 1958. Last previous edition approved in 2001 as B 327 01e2.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For
15、 Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United S
16、tates.shall be sound, uniform in size, and free of a heavily oxidizedsurface coating, stringers, and moisture.6. Chemical Requirements6.1 LimitsThe material shall conform to the requirementsas to chemical composition prescribed in Table 1 or Table 2.Inaddition there are weight limits for zinc-base m
17、aster alloyswhen supplied in jumbo ingot form. The weight of jumboingots shall conform to the requirements as prescribed in Table3.6.2 In case of dispute the following requirements shallapply:6.2.1 Number of samplesSamples for verification ofchemical composition shall be taken as follows:6.2.2 If th
18、e master alloys are shipped in carload lots of thesame alloy, not less than five samples shall be taken at randomfrom the carload for sampling. If the shipment is in less thancarload lots, the following shall apply:6.2.2.1 Aluminum-base master alloysOne sample shall betaken for each 6000 lb (2722 kg
19、) or fraction thereof. When itis deemed necessary, a sample may be taken from each melt of500 lb (227 kg) or more of the alloy.6.2.2.2 Zinc-base master alloysOne sample shall be takenfor each 10 000 lb (4536 kg) or fraction thereof. Whennecessary, a sample may be taken from each melt of 1000 lb(454
20、kg) or more.6.2.3 A sample may consist of an ingot or bar. In the case ofmetal in shot form, a small representative lot of the shot maybe melted and poured to form a thin chill-cast bar approxi-mately14 in. (6.4 mm) thick or a suitable spectrographic moldsample. In the case of a jumbo ingot, the sam
21、ple may be a castspectrographic specimen taken from the same pour used to castthe jumbo ingots.6.3 Methods of SamplingSamples for determination ofchemical composition shall be taken in accordance with one ofthe following methods:6.3.1 Samples for chemical analysis shall be taken from thematerial by
22、drilling, sawing, milling, turning, or clipping arepresentative piece or pieces to obtain a weight of preparedsample not less than 100 g. Sampling shall be in accordancewith Practice E88.6.3.2 By agreement between the producer and the purchaser,other methods of sampling cast products for spectrochem
23、icaland other methods of analysis may be used. Such methods shallbe suitable for the form of material being analyzed and the typeof analytical method used.6.3.2.1 An optional method of sampling for analysis may beto melt together representative portions of each ingot selected,and then sample the liq
24、uid composite by casting suitablespecimens for spectrographic and/or chemical analysis.TABLE 1 Chemical Requirements for Aluminum-Base Master AlloysNOTE 1The following applies to all specified limits in this table: For purposes of determining conformance with this specification, the observed valueor
25、 calculated value obtained from analysis shall be rounded off “to the nearest unit” in the last right hand place of figures used in expressing the specifiedlimit, in accordance with the rounding method of Practice E29.ASTMAlloy(UNS)AComposition, percentUsageAlu-minum,minCopperIron,maxSilicon,maxMang
26、a-nese,maxMagnesiumBZincChro-mium,maxNickel,maxTin,maxLead,maxBCad-mium,maxBZG71A(A07131)87.0 1.7 max 0.8 0.7 0.50 0.651.05 6.57.5 0.20 0.20 0.02 0.020 0.010 1 part by weight of ZG71A, 21parts by weight of Special HighGrade zincCto make ASTMzinc Alloy Z33520 (AG40A)AUNS designations were established
27、 in accordance with Recommended Practice E 527.BCarried to one additional decimal place to ensure proper control in the final alloy.CASTM Specification B6, for Zinc.TABLE 2 Chemical and Color Code Requirements for Zinc-Base Master AlloysA,B,CCommon(UNS)ColorCodeDComposition, percentAlum-inumMag-nesi
28、umIron,maxCopper,maxLead,maxCadmium,maxTin,maxZincV12(Z33730)Pink 11.712.60.0750.120.070 0.25 0.005 0.004 0.003 remain-derAZinc-base master alloy Z33730 used for producing die casting alloys may contain nickel, chromium, silicon, and manganese up to 0.02, 0.02, 0.035 and 0.05 %,respectively. No harm
29、ful effects have ever been noted due to the presence of these elements in up to these concentrations in die casting alloys and, therefore, analysesare not required for these elements, except that nickel analysis is required when producing die casting alloy Z33522.BThe UNS assignations were establish
30、ed in accordance with Practice E 527.CFor purposes of determining conformance with this specification, the observed value or calculated value obtained from analysis shall be rounded off “to the nearestunit” in the last right hand place of figures used in expressing the specified limit, in accordance
31、 with the rounding method of Practice E29.DRefer to Practice B 908. (Note: Colors indicated are for North American applications.)TABLE 3 Weight Requirements for Zinc-Base Master AlloyJumbo IngotsNOTE 1These requirements are based on the use of nominal 2400 lbor 1200 lb jumbo ingots of V12 (Z33730).N
32、ominalWeight, lbWeight Range, lbAUsageMinimum Maximum2400 2325 2475 1 part by weight of V12 (one 2400 lb jumboingot), 2 parts by weight (two 2400 lb jumboingots) of Special High Grade zinc to makeASTM zinc alloy Z33520 (AG40A).1200 1150 1250 1 part by weight of V12 (one 1200 lb jumboingot), 2 parts
33、by weight (one 2400 lbjumbo ingot) of Special High Grade zinc tomake ASTM zinc alloy Z33520 (AG40A).AJumbo ingots outside the above weight limits may be acceptable dependingupon the chemistry, if mutually agreed upon between the producer and purchaser.B 327 01 (2005)26.3.2.2 Samples may also be in t
34、he form of separately castspectrographic specimens taken from the same pour used tocast the ingot.6.3.3 As there is no generally accepted method for obtaininga representative sample from a jumbo ingot, the method ofchoice will be as described in 6.3.2.2.6.4 Method of AnalysisThe determination of che
35、micalcomposition shall be in accordance with suitable methods.6.4.1 For aluminum-base master alloysThe determina-tion of chemical composition shall be in accordance withsuitable chemical (Test Methods E34), spectrochemical (TestMethods E 101 and E 227) or other methods. In case ofdispute, the result
36、s of Test Methods E34shall be the basis ofacceptance.6.4.2 For zinc-base master alloysThe determination ofchemical composition shall be in accordance with suitablechemical (Test Method E 536), or other methods. Becausethere is no ASTM method covering the composition of thiszinc-base master alloy, th
37、e test method used as the basis ofacceptance shall be as agreed upon between the producer andpurchaser.7. Size and Shape7.1 Aluminum alloy hardener may be supplied in the formof shot, bar or ingot but typically is supplied as shot.7.2 Zinc-base master alloy may be supplied as ingot orjumbo ingot but
38、 is typically supplied as jumbo ingot.7.2.1 The weight of zinc master alloy jumbo ingots isimportant because they are added in a fixed ratio to SpecialHigh Grade zinc jumbo ingots. The weight of jumbo ingotsshall be 1200 6 50 lbs or 2400 6 75 lbs. Other sizes or weightlimits, or both, may be as agre
39、ed upon by the producer andcustomer.8. Source Inspection8.1 If the purchaser desires that his representative inspect orwitness the inspection and testing of the product prior toshipment, such agreement shall be made by the purchaser andproducer or supplier as part of the contract or purchase order.8
40、.2 When such inspection or witness of inspection andtesting is agreed upon, the producer or supplier shall afford thepurchasers representative all reasonable facilities to satisfyhim that the product meets the requirements of this specifica-tion. Inspection and tests shall be conducted so there is n
41、ounnecessary interference with the producers operations.9. Rejection and Rehearing9.1 Material that fails to conform to the requirements of thisspecification may be rejected. Rejection should be reported tothe producer or supplier promptly and in writing. In case ofdissatisfaction with the results o
42、f the test, the producer orsupplier may make claim for a rehearing. If the rehearingestablishes that the material does not conform to the require-ments of this specification, as much of the rejected originalmaterial as possible shall be returned to the producer orsupplier.10. Identification Marking1
43、0.1 All shot bags, bars, ingots, or jumbo ingots shall beproperly marked for identification with the producers name orbrand.10.2 Each bundle or skid shall be identified with theproducers heat, lot, or other identification mark.10.3 Each ingot, bundle or skid shall be marked with thepink Color Code f
44、or alloy V12 as per North Americanrequirements in Practice B 908.11. Preparation for Delivery11.1 PackagingUnless otherwise specified the materialshall be packaged to provide adequate protection duringnormal handling and transportation. Each package shall con-tain only one alloy unless otherwise agr
45、eed upon.11.2 MarkingEach shipping container shall be legiblymarked with the suppliers name or trademark.12. Keywords12.1 aluminum alloy hardener; aluminum-base master al-loy; master alloy; V12; zinc-base master alloy; zinc die castingalloySUMMARY OF CHANGESThis section contains the principal change
46、s to the standard that have been incorporated since the last issue.(1) Practice B 908 was added to Referenced Documents.(2) North American Color Code Requirements added toTable 1.(3) Color Code requirement added to Identification Marking.B 327 01 (2005)3ASTM International takes no position respectin
47、g the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standa
48、rd is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Internationa
49、l Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610
