1、Designation: B26/B26M 14Standard Specification forAluminum-Alloy Sand Castings1This standard is issued under the fixed designation B26/B26M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in par
2、entheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification2covers aluminum-alloy sand castingsdesigna
3、ted as shown in Table 1.1.2 This specification is for aluminum-alloy sand castingsused in general purpose applications. It may not address themechanical properties, integrity testing, and verification re-quired for highly loaded or safety critical applications.1.3 Alloy and temper designations are i
4、n accordance withANSI H35.1/H35.1M. Unified Numbering System alloy des-ignations are in accordance with Practice E527.1.4 Unless the order specifies the “M” specificationdesignation, the material shall be furnished to the inch-poundunits.1.5 For acceptance criteria for inclusion of new aluminumand a
5、luminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently o
6、f the other. Combiningvalues from the two systems may result in nonconformancewith 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 establish appro-priate safety and health p
7、ractices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:3B179 Specification for Aluminum
8、Alloys in Ingot and Mol-ten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Nonferrous Metalsand Alloys, Cast and WroughtB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought a
9、nd CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB881 Terminology Relating to Aluminum- and Magnesium-Alloy ProductsB985 Practice for Sampling Aluminum Ingots, Billets, Cast-ings and Finished or Semi-Finished Wrought Aluminum
10、Products for Compositional AnalysisB917/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 SpecificationsE34 Test Methods for Chemical Analysis of Al
11、uminum 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 Metals and Alloys in theUnified Numbering System (UNS)E607 Test
12、 Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere (Withdrawn 2011)4E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spectrochemical Analysis1This specific
13、ation 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 Oct. 1, 2014. Published October 2014. Originallyapproved in 1918. Last previous edition approved in 20
14、12 as B26/B26M 12. DOI:10.1520/B0026_B0026M-14.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-26/SB-26M in Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annua
15、l Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harb
16、or Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Spark Atomic Emission SpectrometryE2422 Digital Reference Images for Inspection of Alumi-num CastingsIEEE/ASTM SI 10 Standard for Use of the InternationalSystem o
17、f Units (SI): The Modern Metric System2.3 AMS Standard:5AMS 2771 Heat Treatment of Aluminum Alloy Castings2.4 American National Standards:6H35.1/H35.1(M) Alloy and Temper Designation System forAluminum2.5 Military Standards:7MIL-STD-129 Marking for Shipment and StorageMIL-STD-276 Impregnation of Por
18、ous Nonferrous MetalCastingsNAVSEA Technical Publication S9074-AR-GIB-010/2782.6 Federal Standard:7Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.7 Other Standards:8EN 14242 Aluminum and Aluminum Alloys ChemicalAnalysis Inductively Coupled Plasma Optical Emis-sion Spectral Analysis3. Termi
19、nology3.1 DefinitionsRefer to Terminology B881 for definitionsof product terms used in this specification.3.2 sand castinga metal object produced by pouringmolten metal into a sand mold and allowing it to solidify.5Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale
20、, PA 15096-0001, http:/www.sae.org.6Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org/bookstore.7Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.
21、dodssp.daps.mil.8Available from European Committee for Standardization (CEN), 36 rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.TABLE 1 Chemical Composition LimitsNOTE 1When single units are shown, these indicate the maximum amounts permitted.NOTE 2Analysis shall be made for the elem
22、ents for which limits are shown in this table.NOTE 3The following applies to all specified limits in this table: For purposes of determining conformance to these limits, an observed value or acalculated value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of
23、 figures used in expressing the specified limitin accordance with the rounding method of Practice E29.AlloyAluminumComposition, (Values in Weight Percent) OthersANSI UNS Silicon Iron CopperMan-ganeseMagne-siumChromium Nickel Zinc Tin Titanium Each Total201.0 A02010 remainder 0.10 0.15 4.05.2 0.200.5
24、0 0.150.55 . . . . 0.150.35 0.05A0.10204.0 A02040 remainder 0.20 0.35 4.25.0 0.10 0.150.35 . 0.05 0.10 0.05 0.150.30 0.05 0.15242.0 A02420 remainder 0.7 1.0 3.74.5 0.35 1.21.8 0.25 1.72.3 0.35 . 0.25 0.05 0.15A242.0 A12420 remainder 0.6 0.8 3.74.5 0.10 1.21.7 0.150.25 1.82.3 0.10 . 0.070.20 0.05 0.1
25、5295.0 A02950 remainder 0.71.5 1.0 4.05.0 0.35 0.03 . . 0.35 . 0.25 0.05 0.15319.0 A03190 remainder 5.56.5 1.0 3.04.0 0.50 0.10 . 0.35 1.0 . 0.25 . 0.50328.0 A03280 remainder 7.58.5 1.0 1.02.0 0.200.6 0.200.6 0.35 0.25 1.5 . 0.25 . 0.50355.0 A03550 remainder 4.55.5 0.6B1.01.5 0.50B0.400.6 0.25 . 0.3
26、5 . 0.25 0.05 0.15C355.0 A33550 remainder 4.55.5 0.20 1.01.5 0.10 0.400.6 . . 0.10 . 0.20 0.05 0.15356.0 A03560 remainder 6.57.5 0.6B0.25 0.35B0.200.45 . . 0.35 . 0.25 0.05 0.15A356.0 A13560 remainder 6.57.5 0.20 0.20 0.10 0.250.45 . . 0.10 . 0.20 0.05 0.15443.0 A04430 remainder 4.56.0 0.8 0.6 0.50
27、0.05 0.25 . 0.50 . 0.25 . 0.35B443.0 A24430 remainder 4.56.0 0.8 0.15 0.35 0.05 . . 0.35 . 0.25 0.05 0.15512.0 A05120 remainder 1.42.2 0.6 0.35 0.8 3.54.5 0.25 . 0.35 . 0.25 0.05 0.15514.0 A05140 remainder 0.35 0.50 0.15 0.35 3.54.5 . . 0.15 . 0.25 0.05 0.15520.0 A05200 remainder 0.25 0.30 0.25 0.15
28、 9.510.6 . . 0.15 . 0.25 0.05 0.15535.0 A05350 remainder 0.15 0.15 0.05 0.100.25 6.27.5 . . . . 0.100.25 0.05C0.15705.0 A07050 remainder 0.20 0.8 0.20 0.400.6 1.41.8 0.200.40 . 2.73.3 . 0.25 0.05 0.15707.0 A07070 remainder 0.20 0.8 0.20 0.400.6 1.82.4 0.200.40 . 4.04.5 . 0.25 0.05 0.15710.0DA07100 r
29、emainder 0.15 0.50 0.350.65 0.05 0.60.8 . . 6.07.0 . 0.25 0.05 0.15712.0DA07120 remainder 0.30 0.50 0.25 0.10 0.500.65 0.400.6 . 5.06.5 . 0.150.25 0.05 0.20713.0 A07130 remainder 0.25 1.1 0.401.0 0.6 0.200.50 0.35 0.15 7.08.0 . 0.25 0.10 0.25771.0 A07710 remainder 0.15 0.15 0.10 0.10 0.81.0 0.060.20
30、 . 6.57.5 . 0.100.20 0.05 0.15850.0 A08500 remainder 0.7 0.7 0.71.3 0.10 0.10 . 0.71.3 . 5.57.0 0.20 . 0.30851.0DA08510 remainder 2.03.0 0.7 0.71.3 0.10 0.10 . 0.300.7 . 5.57.0 0.20 . 0.30852.0DA08520 remainder 0.40 0.7 1.72.3 0.10 0.60.9 . 0.91.5 . 5.57.0 0.20 . 0.30AContains silver 0.401.0 %.BIf i
31、ron exceeds 0.45 %, manganese content shall not be less than one half of the iron content.CContains beryllium 0.0030.007 %, boron 0.005 % max.D710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.EASTM alloy designations are recorded in Practice B275.F“Others” i
32、ncludes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements notspecified in the specification. However, such analysis is not required and may not cover all metallic “Others” elements. Should any analysis by t
33、he producer or the purchaserestablish that an “Others” element exceeds the limit of “Each” or that the aggregate of several “Others” elements exceeds the limit of “Total,” the material shall be considerednonconforming.GOther ElementsTotal shall be the sum of unspecified metallic elements 0.010 % or
34、more, rounded to the second decimal before determining the sum.B26/B26M 1424. Ordering Information4.1 Orders for material under this specification shall includethe following information (1.4 and 1.5):4.1.1 This specification designation (which includes thenumber, year, and revision letter, if applic
35、able),NOTE 1For inch-pound application, specify Specification B26 and formetric application specify Specification B26M. Do not mix units.4.1.2 The quantity in either pieces or pounds kilograms,4.1.3 Alloy (Section 7 and Table 1),4.1.4 Temper (Section 10 and Table 2), and4.1.5 Applicable drawing or p
36、art number,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 and Table 2),4.2.2 Whether castings or test bars, or both, may be artifi-cia
37、lly aged for Alloys 705.0-T5, 707.0-T5, 712.0-T5, and713.0-T5 (10.2) and whether yield strength tests are requiredfor these alloys;TABLE 2 Tensile RequirementsA(Inch-Pound Units)NOTE 1For purposes of determining conformance with this specification, each value for tensile strength and yield strength
38、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.AlloyTemperBTensile Strength,min, ksiYield Strength(0.2 % offset),min, ksiElongation in2 in. or 4 xdiameter, min, %Typical Brinell H
39、ard-ness,C500 kgf, 10mmANSIDUNS201.0 A02010 T7 60.0 50.0 3.0 .204.0 A02040 T4 45.0 28.0 6.0 .242.0 A02420 OE23.0FF70T61 32.0 20.0F105A242.0 A12420 T75 29.0F1.0 75295.0 A02950 T4 29.0 13.0 6.0 60T6 32.0 20.0 3.0 75T62 36.0 28.0F95T7 29.0 16.0 3.0 70319.0 A03190 FT5T623.025.031.013.0F20.01.5F1.5708080
40、328.0 A03280 FT625.034.014.021.01.01.06080355.0 A03550 T6T51T7132.025.030.020.018.022.02.0FF806575C355.0 A33550 T6 36.0 25.0 2.5 .356.0 A03560 F 19.0 9.5 2.0 55T6 30.0 20.0 3.0 70T7 31.0FF75T51 23.0 16.0F60T71 25.0 18.0 3.0 60A356.0 A13560 T6T6134.035.024.026.03.51.080.443.0 A04430 F 17.0 7.0 3.0 40
41、B443.0512.0A24430A05120FF17.017.06.010.03.0.4050514.0 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 T5 30.0 17.0G5.0 65707.0 A07070 T7 37.0 30.0G1.0 80710.0HA07100 T5 32.0 20.0 2.0 75712.0HA07120 T5 34.0 25.0G4.0 75713.0 A07130 T5 32.0 22.0 3.0
42、75771.0 A07710 T5 42.0 38.0 1.5 100T51 32.0 27.0 3.0 85T52 36.0 30.0 1.5 85T6 42.0 35.0 5.0 90T71 48.0 45.0 2.0 120850.0 A08500 T5 16.0F5.0 45851.0HA08510 T5 17.0F3.0 45852.0HA08520 T5 24.0 18.0F60AIf agreed upon between the manufacturer and the purchaser, other mechanical properties may be obtained
43、 by other heat treatments such as annealing, aging, or stressrelieving.BRefer to ANSI H35.1/H35.1M, or both, for description of tempers.CFor information only, not required for acceptance.DASTM alloy designations are recorded in Practice B275.EFormerly designated as 222.0-T2 and 242.0-T21.FNot requir
44、ed.GYield strength to be determined only when specified in the contract or purchase order.H710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.B26/B26M 1434.2.3 Whether test specimens cut from castings are requiredin addition to, or instead of, separately cast
45、specimens (Sec-tions 10 and 13);4.2.4 Whether heat treatment is to be performed in accor-dance with AMS 2771 (see Section 15),4.2.5 Whether repairs are permissible (16.1),4.2.6 Whether inspection is required at the producersworks (Section 18);4.2.7 Whether certification is required (21.1);4.2.8 Whet
46、her surface requirements shall be checkedagainst observational standards where such standards areestablished (19.1);4.2.9 Whether liquid penetrant inspection is required (19.2);4.2.10 Whether radiographic inspection is required and, ifso, the radiographic grade of casting required (19.3, Table 3);4.
47、2.11 Whether foundry control is required (Section 9); and4.2.12 Whether Practice B660 applies and, if so, the levelsof preservation, packaging, and packing required (23.4).5. Quality Assurance5.1 Unless otherwise specified in the contract or purchaseorder, the producer shall be responsible for the p
48、erformance ofall inspections and test requirements specified herein. Unlessdisapproved by the purchaser, the producer may use his own orany other suitable facilities for the performance of the inspec-tion and test requirements specified herein. The purchaser shallhave the right to perform any of the
49、 inspections and tests setforth in this specification where such inspections are deemednecessary to confirm that the material conforms to prescribedrequirements.6. 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 purchaser.7. Chemical Composition7.1 The Produc
