1、Designation: B618/B618M 11aStandard Specification forAluminum-Alloy Investment Castings1This standard is issued under the fixed designation B618/B618M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers aluminum-alloy investmentcast
3、ings designated as shown in Table 1.1.2 This specification is for aluminum-alloy investmentcastings used in general purpose applications. It may notaddress the mechanical properties integrity testing and verifi-cation required for highly loaded or safety critical applications.1.3 Alloy and temper de
4、signations are in accordance withANSI H35.1/H35.1 (M). The equivalent Unified NumberingSystem alloy designations are in accordance with PracticeE527.1.4 Unless the order specifies the “M” specification desig-nation, the material shall be furnished to the inch-pound units.1.5 For acceptance criteria
5、for inclusion of new aluminumand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, e
6、ach system shall be used independently of the other.Combining values from the two systems may result in noncon-formance with the standard.1.7 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to
7、establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on thedate of purchase form a part of this specification to the extentreferenced herein:2.2 ASTM Standa
8、rds:2B179 Specification for Aluminum Alloys in Ingot andMolten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Nonferrous Met-als and Alloys, Cast and WroughtB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test
9、Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB881 Terminology Relating toAluminum- and Magnesium-Alloy ProductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from Al
10、l ProcessesD3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE94 Guide for Radiographic ExaminationE155 Reference Radiographs for Inspectio
11、n of Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant Examination for GeneralIndustryE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen
12、Atmosphere3E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spectrochemical AnalysisE1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Spark Atomic Emission SpectrometryE2422 Digital Reference Images for Ins
13、pection of Alumi-num CastingsIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingot
14、s and Castings.Current edition approved Dec. 1, 2011. Published January 2012. Originallyapproved in 1977. Last previous edition approved in 2011 as B618/B618M 11.DOI: 10.1520/B0618_B0618M-11A.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at ser
15、viceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1*A Summary of Changes section appears at the end of this standard.Copyrig
16、ht ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 1 Chemical Composition RequirementsNOTE 1When single units are shown, these indicate the maximum amounts permitted.NOTE 2Analysis shall be made for the elements for which limits are shown
17、 in this table.NOTE 3The following applies to all specified limits in this table: For purposes of acceptance and rejection, an observed value or a calculated value obtained from analysis should be roundedoff to the nearest unit in the last right-hand place of figures used in expressing the specified
18、 limit (Practice E29).Alloy Composition, %ANSIAUNS Silicon Iron CopperMan-ganeseMag-nesiumChro-miumNickel ZincTitan-iumTinOtherBElementsAluminumEach TotalC201.0 A02010 0.10 0.15 4.05.2 0.200.50 0.150.55 . . . 0.150.35 .D0.05 0.10 remainder204.0 A02040 0.20 0.35 4.25.0 0.10 0.150.35 . 0.05 0.10 0.150
19、.30 0.05 0.05 0.15 remainder242.0 A02420 0.7 1.0 3.54.5 0.35 1.21.8 0.25 1.72.3 0.35 0.25 . 0.05 0.15 remainder295.0 A02950 0.71.5 1.0 4.05.0 0.35 0.03 . . 0.35 0.25 . 0.05 0.15 remainder319.0 A03190 5.56.5 1.0 3.04.0 0.50 0.10 . 0.35 1.0 0.25 . . 0.50 remainder328.0 A03280 7.58.5 1.0 1.02.0 0.200.6
20、 0.200.6 0.35 0.25 1.5 0.25 . . 0.50 remainder355.0 A03550 4.55.5 0.6E1.01.5 0.50E0.400.6 0.25 . 0.35 0.25 . 0.05 0.15 remainderC355.0 A33550 4.55.5 0.20 1.01.5 0.10 0.400.6 . . 0.10 0.20 . 0.05 0.15 remainder356.0 A03560 6.57.5 0.6E0.25 0.35E0.200.45 . . 0.35 0.25 . 0.05 0.15 remainderA356.0 A13560
21、 6.57.6 0.20 0.20 0.10 0.250.45 . . 0.10 0.20 . 0.05 0.15 remainder443.0 A04430 4.56.0 0.8 0.6 0.50 0.05 0.25 . 0.50 0.25 . . 0.35 remainderB443.0 A24430 4.56.0 0.8 0.15 0.35 0.05 . . 0.35 0.25 . 0.05 0.15 remainder514.0 A05140 0.35 0.50 0.15 0.35 3.54.5 . . 0.15 0.25 . 0.05 0.15 remainder520.0 A052
22、00 0.25 0.30 0.25 0.15 9.510.6 . . 0.15 0.25 . 0.05 0.15 remainder535.0 A05350 0.15 0.15 0.05 0.100.25 6.27.5 . . . 0.100.25 .F0.05 0.15 remainder705.0 A07050 0.20 0.8 0.20 0.400.6 1.41.8 0.200.40 . 2.73.3 0.25 . 0.05 0.15 remainder707.0 A07070 0.20 0.8 0.20 0.400.6 1.82.4 0.200.40 . 4.04.5 0.25 . 0
23、.05 0.15 remainder710.0GA07100 0.15 0.50 0.350.65 0.05 0.60.8 . . 6.07.0 0.25 . 0.05 0.15 remainder712.0GA07120 0.30 0.50 0.25 0.10 0.500.65 0.400.6 . 5.06.5 0.150.25 . 0.05 0.20 remainder713.0 A07130 0.25 1.1 0.401.0 0.6 0.200.50 0.35 0.15 7.08.0 0.25 . 0.10 0.25 remainder771.0 A07710 0.15 0.15 0.1
24、0 0.10 0.81.0 0.060.20 . 6.57.5 0.100.20 . 0.05 0.15 remainder850.0 A08500 0.7 0.7 0.71.3 0.10 0.10 . 0.71.3 . 0.20 5.57.0 . 0.30 remainder851.0GA08510 2.03.0 0.7 0.71.3 0.10 0.10 . 0.30.7 . 0.20 5.57.0 . 0.30 remainder852.0GA08520 0.40 0.7 1.72.3 0.10 0.60.9 . 0.91.5 . 0.20 5.57.0 . 0.30 remainderA
25、ASTM alloy designations are in Practice B275.B“Others” includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not specified in the specification. However, suchanalysis is not required and may not cover
26、all metallic “Others” elements. Should any analysis by the producer or the purchaser establish that an “Others” element exceeds the limit of “Each” or that the aggregate ofseveral “ Others” elements exceeds the limit of “Total,” the material shall be considered nonconforming.COther ElementsTotal sha
27、ll be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.DContains silver 0.401.0 %.EIf iron exceeds 0.45 %, manganese content shall not be less than one half of the iron content.FContains beryllium 0.0030.007 %, boron 0.002 % max.G710.
28、0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.B618/B618M11a22.3 ANSI Standard:4H35.1/H35.1 (M) - 2006 American National Standard Alloyand Temper Designation Systems for Aluminum2.4 Military Standards:5MIL-STD-129 Marking for Shipment and StorageMIL-STD-276 Im
29、pregnation of Porous Nonferrous MetalCastings2.5 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)52.6 AMS Standard:6AMS 2771 Heat Treatment of Aluminum Alloy Castings2.7 NAVSEA Standard:7S9074-AR-GIB-010/278 Requirements for FabricationWelding and Inspection, and Casting Insp
30、ection andRepair for Machinery, Piping, and Pressure Vessels2.8 Other Standards:8CEN EN 14242 Aluminum and Aluminum Alloys, Chemi-cal Analysis, Inductively Coupled Plasma Optical Emis-sion Spectral Analysis3. Terminology3.1 Definitions: Refer to Terminology B881 for definitionsof product terms used
31、in this specification.3.1.1 investment castinga metal object produced by sur-rounding (investing) an expendable pattern (usually wax orplastic) with a refractory slurry that sets at room temperature,after which the pattern is removed through the use of heat, andthen filling the resulting cavity with
32、 molten metal and allowingit to solidify.4. Ordering Information4.1 Orders for material under this specification shall includethe following information (Sections 1.4 and 1.6):4.1.1 This specification designation (which includes thenumber, the year, and the revision letter, if applicable),NOTE 1For i
33、nch-pound application, specify Specification B618 andfor metric application specify Specification B618M. Do not mix units.4.1.2 Alloy (Section 7 and Table 1),4.1.3 Temper (Section 11 and Table 2 Table 3),4.1.4 Applicable drawing or part number,4.1.5 The quantity in either pieces or pounds kilograms.
34、4.2 Additionally, orders for material to this specificationshall include the following information when required by thepurchaser:4.2.1 Whether chemical analysis and tensile property re-ports are required (Table 1, Table 2 Table 3),4.2.2 Whether castings or test specimens or both may besupplied in th
35、e artificially agedT5 temper for alloys 705.0,707.0, 712.0, and 713.0 (see 11.2),4.2.3 Whether test specimens cut from castings are requiredin addition to or instead of separately cast specimens (see 11.3and 12.2),4.2.4 Whether heat treatment is to be performed in accor-dance with AMS 2771 (see 16)4
36、.2.5 Whether repairs are permissible (see 17.1),4.2.6 Whether inspection is required at the producersworks (see 19.1),4.2.7 Whether surface requirements shall be checkedagainst observational standards where such standards areestablished (see 20.1),4.2.8 Whether liquid penetrant inspection is require
37、d (see20.3),4.2.9 Whether radiographic inspection is required and if sothe radiographic grade of casting required (see 20.4, Table 4),4.2.10 Whether certification is required (see 22.1),4.2.11 Whether foundry control is required (10),4.2.12 Whether Practices B660 applies and, if so, the levelsof pre
38、servation, packaging and packing required (24.3),4.2.13 Whether marking in accordance with Fed. Std. 123or D3951 or MIL-STD 129 applies ( 24.3).5. Responsibility for Quality Assurance5.1 Responsibility for Inspection and TestsUnless other-wise specified in the contract or purchase order, the produce
39、rshall be responsible for the performance of all inspection andtest requirements specified herein. Except as otherwise speci-fied in the contract or order, the producer may use his own orany other suitable facilities for the performance of the inspec-tion and test requirements specified herein, unle
40、ss disapprovedby the purchaser. The purchaser shall have the right to performany of the inspections and tests set forth in this specificationwhere such inspections are deemed necessary to confirm thatmaterial conforms to prescribed requirements.6. Materials and Manufacture6.1 The responsibility of f
41、urnishing castings that can be laidout and machined to the finished dimensions within thepermissible variations specified, as shown on the blueprints ordrawings, shall rest with the producer, except where patternequipment is furnished by the purchaser.6.1.1 Unless otherwise specified, only aluminum
42、alloy con-forming to the requirements of Specification B179 or produc-ers foundry scrap (identified as being made from alloyconforming to Specification B179) shall be used in the remelt-ing furnace from which molten metal is taken for pouringdirectly into castings. Additions of small amounts of modi
43、fiersand grain refining elements or alloys are permitted.6.1.2 Pure materials, recycled materials, and master alloysmay be used to make alloys conforming to this specification,provided chemical analysis can be taken and adjusted toconform to Table 1 prior to pouring any castings.7. Chemical Composit
44、ion7.1 The product shall conform to the chemical compositionlimits prescribed in Table 1. Conformance shall be determined4Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org.5Available from Standardization Documents Order Desk, DODSSP,
45、Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.6Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.7Available from Naval Sea Systems Command (NAVSEA), 1333 Isaac HullAve., SE, Washington
46、, DC 20376, http:/www.navsea.navy.mil.8Available from European Committee for Standardization (CEN), 36 rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.B618/B618M 11a3TABLE 2 Tensile RequirementsA(Inch-Pound Units)NOTE 1 For purposes of determining conformance with this specification,
47、each value for tensile strength and yield strength shall be rounded to thenearest 0.1 ksi and each value for elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding method of Practice E29.AlloyTemperBTensileStrength, min,ksiYield Strength(0.2 % offset)min, ksiElongatio
48、n in2 in. or 43diameter,min, %TypicalBrinell Hard-ness,C500kgf, 10 mmANSIDUNS201.0 A02010 T6 60.0 50.0 5.0 .T7 60.0 50.0 3.0 .204.0 A02040 T4 45.0 28.0 6.0 .T6 30.0EE115242.0 A02420 OF23.0 70T61 32.0 20.0E105295.0 A02950 T4 29.0 13.0 6.0 60T6 32.0 20.0 3.0 75T62 36.0 28.0B95T7 29.0 16.0 3.0 70319.0
49、A03190 F 23.0 13.0 1.5 70T6 31.0 20.0 1.5 80328.0 A03280 F 25.0 14.0 1.0 60T6 34.0 21.0 1.0 80355.0 A03550 T6 32.0 20.0 2.0 80T51 25.0 18.0E65T71 30.0 22.0E75C355.0 A33550 T6 36.0 25.0 2.5 .356.0 A03560 F 19.0E2.0 55T6 30.0 20.0 3.0 70T7 31.0EE75T51 23.0 16.0E60T71 25.0 18.0 3.0 60A356.0 A13560 T6 34.0 24.0 3.5 80443.0 A04430 F 17.0 7.0 3.0 40B443.0 A24430 F 17.0 6.0 3.0 40514.0 A05140 F 22.0 9.0 6.0 50520.0 A05200 T4 42.0 22.0 12.0 75535.0 A05350 F 35.0 18.0 9.0 70705.0 A07050 T1Gand T5H30
