1、Designation: B618/B618M 10Standard 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 num
2、ber 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 investmentcasti
3、ngs designated as shown in Table 1.1.2 This specification is not intended for aluminum-alloyinvestment castings used in aerospace applications.1.3 Alloy and temper designations are in accordance withANSI H35.1/H35.1 (M). The equivalent Unified NumberingSystem alloy designations are in accordance wit
4、h 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 for inclusion of new aluminumand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 UnitsThe val
5、ues 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, each system shall be used independently of the other.Combining values from the two systems may result in noncon-formance with the stand
6、ard.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 establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenc
7、ed 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 Standards:2B179 Specification for Aluminum Alloys in Ingot andMolten Forms for Castings from All Casting ProcessesB275 Practice for Codifica
8、tion of Certain Nonferrous Met-als and Alloys, Cast and WroughtB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Alu
9、minum andMagnesium ProductsB881 Terminology Relating toAluminum- and Magnesium-Alloy ProductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesD3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with
10、SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE94 Guide for Radiographic ExaminationE155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant Examination for GeneralIndustryE527 Practice for Numbering Metal
11、s and Alloys in theUnified Numbering System (UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen AtmosphereE716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition b
12、y Spectrochemical AnalysisE1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Atomic Emission SpectrometryIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System2.3 ANSI Standard:3H35.1/H35.1 (M) - 2006 American National Standard Alloyand Te
13、mper Designation Systems for Aluminum1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.Current edition approved Nov. 1, 2010. Published December 2010. Originallyap
14、proved in 1977. Last previous edition approved in 2008 as B618/B618M 08.DOI: 10.1520/B0618_B0618M-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards D
15、ocument Summary page onthe ASTM website.3Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Consh
16、ohocken, 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 in this table.NOTE 3The following applies to all specified limits in
17、 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 limit (Practice E29).Alloy Composition, %ANSIAUNS Silicon Iron Coppe
18、rMan-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 0.150.30 0.05 0.05 0.15 remainder242.0 A02420 0.7 1.0 3.54.5 0.35 1.21.8 0
19、.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 0.200.6 0.35 0.25 1.5 0.25 . . 0.50 remainder355.0 A03550 4.55.5 0.6
20、E1.01.5 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 6.57.6 0.20 0.20 0.10 0.250.45 . . 0.10 0.20 . 0.05 0.15 remainder44
21、3.0 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 A05200 0.25 0.30 0.25 0.15 9.510.6 . . 0.15 0.25 . 0.05 0.15 remainder535
22、.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 . 0.05 0.15 remainder710.0GA07100 0.15 0.50 0.350.65 0.05 0.60.8 . . 6.0
23、7.0 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 0.10 0.10 0.81.0 0.060.20 . 6.57.5 0.100.20 . 0.05 0.15 remainder850.0 A
24、08500 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 remainderAASTM alloy designations are in Practice B275.B“Others” includes liste
25、d 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 all metallic “Others” elements. Should any analysis by the producer o
26、r 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 shall be the sum of unspecified metallic elements 0.010 % or more, round
27、ed 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.G710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.
28、0 formerly B850.0.B618/B618M1022.4 Military Standards:4MIL-STD-129 Marking for Shipment and StorageMIL-STD-276 Impregnation of Porous Nonferrous MetalCastings2.5 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)42.6 AMS Standard:5AMS 2771 Heat Treatment of Aluminum Alloy Casti
29、ngs2.7 NAVSEA Standard:6S9074-AR-GIB-010/278 Requirements for FabricationWelding and Inspection, and Casting Inspection andRepair for Machinery, Piping, and Pressure Vessels2.8 Other Standards:7CEN EN 14242 Aluminum and Aluminum Alloys, Chemi-cal Analysis, Inductively Coupled Plasma Optical Emis-sio
30、n Spectral Analysis3. Terminology3.1 Definitions: Refer to Terminology B881 for definitionsof product terms used 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
31、temperature,after which the pattern is removed through the use of heat, andthen filling the resulting cavity with 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 s
32、pecification designation (which includes thenumber, the year, and the revision letter, if applicable),NOTE 1For inch-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
33、Table 2 Table 3),4.1.4 Applicable drawing or part number,4.1.5 The quantity in either pieces or pounds kilograms.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-po
34、rts are required (Table 1, Table 2 Table 3),4.2.2 Whether castings or test specimens or both may besupplied in the 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 sp
35、ecimens (see 11.3and 12.2),4.2.4 Whether heat treatment is to be performed in accor-dance with AMS 2771 (see 16)4.2.5 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 observatio
36、nal standards where such standards areestablished (see 20.1),4.2.8 Whether liquid penetrant inspection is required (see20.3),4.2.9 Whether radiographic inspection is required (see20.4),4.2.10 Whether certification is required (see 22.1),4.2.11 Whether foundry control is required (10),4.2.12 Whether
37、Practices B660 applies and, if so, the levelsof preservation, 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 speci
38、fied in the contract or purchase order, the producershall 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 inspe
39、c-tion and test requirements specified herein, unless 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. M
40、aterials and Manufacture6.1 The responsibility of furnishing 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 purchas
41、er.6.1.1 Unless otherwise specified, only aluminum 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 pouringdirectl
42、y into castings. Additions of small amounts of modifiersand 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
43、 prior to pouring any castings.7. Chemical Composition7.1 The product shall conform to the chemical compositionlimits prescribed in Table 1. Conformance shall be determinedby the producer by taking samples at the time castings arepoured in accordance with E716 and analyzed in accordancewith E607, E1
44、251, E34 or EN 14242. If the producer hasdetermined the composition of the material during casting, theyshall not be required to sample and analyze the finishedproduct.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http
45、:/www.dodssp.daps.mil.5Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.6Available from Naval Sea Systems Command (NAVSEA), 1333 Isaac HullAve., SE, Washington, DC 20376, http:/www.navsea.navy.mil.7Available from European Committ
46、ee for Standardization (CEN), 36 rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.B618/B618M 103TABLE 2 Tensile RequirementsA(Inch-Pound Units)NOTE 1 For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to
47、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, ksiElongation in2 in. or 43diameter,min, %TypicalBrinell Hard-ness,C500kgf, 10 mmAN
48、SIDUNS201.0 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 A03190 F 23.0 13.0 1.5 70T6 31.0 20.0 1.5 80328.0 A03280 F 25.0 14.0 1.
49、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 T5H30.0 17.0I5.0 65707.0 A07070 T1G33.0 22.0I2.0 85T7 37.0 30.0I1.0 80710.0J
