1、Designation: B 26/B 26M 05Standard Specification forAluminum-Alloy Sand Castings1This standard is issued under the fixed designation B 26/B 26M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in
2、 parentheses indicates the year of last reapproval.A superscript epsilon (e) 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 specification2covers aluminum-alloy sand castingsdesigna
3、ted as shown in Table 1.1.2 This specification is not intended for aluminum-alloysand castings used in aerospace applications.1.3 Alloy and temper designations are in accordance withANSI H35.1 and H35.1M. Unified Numbering System alloydesignations are in accordance with Practice E 527.1.4 Unless the
4、 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 The values stated in either SI units or i
5、nch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.7 This standard does not purpo
6、rt 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. Referenced Documents2.1 The following docume
7、nts of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:3B 179 Specification for Aluminum Alloys in Ingot andMolten Forms for Castings from All Casting ProcessesB 275 Practice for Codification of Certain Nonferrous Me
8、t-als and Alloys, Cast and WroughtB 557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB 557M Test Methods for Tension Testing Wrought andCast Aluminum- and Magnesium-Alloy Products MetricB 660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB
9、 881 Terminology Relating to Aluminum- andMagnesium-Alloy ProductsB 917/B 917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesD 3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test M
10、ethods for ChemicalAnalysis ofAluminum andAluminum Base-AlloysE88 Practice for Sampling Nonferrous Metals and Alloysin Cast Form for Determination of Chemical CompositionE94 Guide for Radiographic ExaminationE 155 Reference Radiographs for Examination of Alumi-num and Magnesium CastingsE 165 Test Me
11、thod for Liquid Penetrant ExaminationE 527 Practice for Numbering Metals and Alloys (UNS)E 607 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by thePoint-to-Plane Technique, Nitrogen AtmosphereE 716 Practices for Sampling Aluminum and AluminumAlloys for Spectr
12、ochemical AnalysisE 1251 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 AMS Standard:4AMS 2771 Heat Treatment of Aluminum Alloy Castings2.4 American Nation
13、al Standards:5H35.1 Alloy and Temper Designation System for Alumi-num1This 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 Sept. 1, 2005. Publ
14、ished September 2005. Originallyapproved in 1918. Last previous edition approved in 2003 as B 26/B 26M 03.2For 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, or
15、contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.5Annual Book of ASTM Standards,
16、 Vol 02.02, in the Related Material section(gray pages).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 States.H35.1(M) Alloy and Temper Designation System for Alu-minum Metr
17、ic2.5 Military Standards:6MIL-STD-129 Marking for Shipment and StorageMIL-STD-276 Impregnation of Porous Nonferrous MetalCastingsNAVSEA Technical Publication S9074-AR-GIB-010/2782.6 Federal Standard:6Fed. Std. No. 123 Marking for Shipment (Civil Agencies)3. Terminology3.1 DefinitionsRefer to Termino
18、logy B 881 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.4. Ordering Information4.1 Orders for material under this specification shall includethe following information (1.4 and 1.
19、5):4.1.1 This specification designation (which includes thenumber, year, and revision letter, if applicable),NOTE 1For inch-pound application, specify Specification B 26 andfor metric application specify Specification B 26M. Do not mix units.4.1.2 The quantity in either pieces or pounds kilograms,4.
20、1.3 Alloy (Section 7 and Table 1),4.1.4 Temper (Section 12 and Table 2), and4.1.5 Applicable drawing or part 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
21、-ports are required (Table 1 and Table 2),4.2.2 Whether castings or test bars, or both, may be artifi-cially aged for Alloys 705.0-T5, 707.0-T5, 712.0-T5, and713.0-T5 (12.2) and whether yield strength tests are requiredfor these alloys;4.2.3 Whether test specimens cut from castings are requiredin ad
22、dition to, or instead of, separately cast specimens (Sec-tions 12 and 15);4.2.4 Whether repairs are permissible (18.1),4.2.5 Whether inspection is required at the producersworks (Section 20);4.2.6 Whether certification is required (23.1);4.2.7 Whether surface requirements shall be checkedagainst obs
23、ervational standards where such standards areestablished (21.1);6Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.TABLE 1 Chemical Composition LimitsNOTE 1When single units are shown, these indicate the maximum amounts perm
24、itted.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 this table: For purposes of determining conformance to these limits, an observed value or acalculated value obtained from analysis shall be rounded to t
25、he nearest unit in the last right-hand place of 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 Total
26、201.0 A02010 remainder 0.10 0.15 4.05.2 0.200.50 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
27、1.21.7 0.150.25 1.82.3 0.10 . 0.070.20 0.05 0.15295.0 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 rema
28、inder 4.55.5 0.6B1.01.5 0.50B0.400.6 0.25 . 0.35 . 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
29、0.15443.0 A04430 remainder 4.56.0 0.8 0.6 0.50 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
30、 0.15520.0 A05200 remainder 0.25 0.30 0.25 0.15 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
31、.200.40 . 4.04.5 . 0.25 0.05 0.15710.0DA07100 remainder 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 A0771
32、0 remainder 0.15 0.15 0.10 0.10 0.81.0 0.060.20 . 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 . 5.5
33、7.0 0.20 . 0.30AContains silver 0.401.0 %.BIf iron 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.B 26/B 26M 0524.2.8
34、 Whether liquid penetrant inspection is required (21.2);4.2.9 Whether radiographic inspection is required (21.3);4.2.10 Whether foundry control is required (Section 11);and4.2.11 Whether Practice B 660 applies and, if so, the levelsof preservation, packaging, and packing required (25.4).5. Quality A
35、ssurance5.1 Unless otherwise specified in the contract or purchaseorder, the producer shall be responsible for the performance ofall inspections and test requirements specified herein. Unlessdisapproved by the purchaser, the producer may use his own orany other suitable facilities for the performanc
36、e of the inspec-tion and test requirements specified herein. The purchaser shallhave the right to perform any of the inspections and tests setforth in this specification where such inspections are deemednecessary to confirm that the material conforms to prescribedrequirements.6. Manufacture6.1 The r
37、esponsibility of furnishing castings that can be laidout and machined to the finished dimensions within theTABLE 2 Tensile RequirementsA(Inch-Pound Units)NOTE 1For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to then
38、earest 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 Hard-ness,C500 kgf, 10mm
39、ANSIDUNS201.0 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 FT5T623.025.031.013.0F20.01.5F1.5708080328.0 A03280 FT625.034.
40、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 40B443.0512.0A24430A05120
41、FF17.017.06.010.03.0.4050514.0 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 75771.0 A07710 T5 42.0
42、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 by other heat treatmen
43、ts such as annealing, aging, or stressrelieving.BRefer to ANSI H35.1 or H35.1M, or both, for description of tempers.CFor information only, not required for acceptance.DASTM alloy designations are recorded in Practice B 275.EFormerly designated as 222.0-T2 and 242.0-T21.FNot required.GYield strength
44、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.B 26/B 26M 053permissible variations specified, as shown on the blueprints ordrawings, shall rest with the producer, except where pattern
45、equipment is furnished by the purchaser.7. Chemical Composition7.1 The castings shall conform to the chemical compositionlimits prescribed in Table 1. Conformance shall be determinedby the producer by analyzing samples taken at the time thecastings are poured, or samples taken from castings or tensi
46、ontest specimens representative of castings. If the producer hasdetermined the chemical composition of the material during thecourse of manufacture, he shall not be required to sample andanalyze the finished product.8. Sampling8.1 A sample for determining of chemical composition shallbe taken to rep
47、resent the following:8.1.1 Not more than 2000 lb 1000 kg of clean castings(gates and risers removed) or a single casting poured from onefurnace.8.1.2 Castings poured continuously from one furnace fornot more than 8 consecutive hours.8.2 Samples for determination of chemical compositionshall be taken
48、 in accordance with one of the followingmethods:8.2.1 Samples for Chemical Analysis Samples for chemi-cal analysis shall be in accordance with Practice E88exceptthat the weight of a prepared sample shall be not less than 75g.8.2.2 Samples for Spectrochemical and Other Methods ofAnalysisSampling for
49、spectrochemical analysis shall be inaccordance with Practices E 716. Samples for other methods ofanalysis shall be suitable for the form of material beinganalyzed and the type of analytical methods used.9. Methods for Determination of Chemical Composition9.1 The determination of chemical composition shall bemade in accordance with suitable chemical (Test MethodsE34) or spectrochemical (Test Methods E 607 and E 1251)methods. Other methods may be used only when no publishedASTM method is av
