1、Designation:B26/B26M11 Designation: B26/B26M 12Standard 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 re
2、vision. A number in parentheses 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 Department of Defense.1. Scope*1.1 This specification2covers aluminum-alloy sa
3、nd castings designated as shown in Table 1.1.2This specification is not intended for aluminum-alloy sand castings used in aerospace applications.1.2 This specification is for aluminum-alloy sand castings used in general purpose applications. It may not address themechanical properties, integrity tes
4、ting, and verification required for highly loaded or safety critical applications.1.3 Alloy and temper designations are in accordance with ANSI H35.1/H35.1M. Unified Numbering System alloy designationsare in accordance with Practice E527.1.4 Unless the order specifies the “M” specification designati
5、on, the material shall be furnished to the inch-pound units.1.5 For acceptance criteria for inclusion of new aluminum and aluminum alloys and their properties in this specification, seeAnnex A1 and Annex A2.1.6 The values stated in either SI units or inch-pound units are to be regarded separately as
6、 standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in nonconformance with the standard.1.7 This standard does not purport to address all of the safety concerns, if a
7、ny, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on date of material p
8、urchase form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:3B179 Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Nonferrous Metals and Alloys, Cast and WroughtB557 Test Metho
9、ds for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum and Magnesium ProductsB881 Terminology Relating to Aluminum- and Magne
10、sium-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 to Determine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum and Alum
11、inum-Base AlloysE94 Guide for Radiographic ExaminationE155 Reference Radiographs for Inspection of Aluminum and Magnesium CastingsE165 Practice for Liquid Penetrant Examination for General IndustryE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)E607 Test Method for
12、 Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique NitrogenAtmosphere1This specification is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on AluminumAlloy Ingots and Castings.Curren
13、t edition approved Dec.May 1, 2011.2012. Published December 2011.June 2012. Originally approved in 1918. Last previous edition approved in 20092011 asB26/B26M09.B26/B26M 11. DOI: 10.1520/B0026_B0026M-112.2For ASME Boiler and Pressure Vessel Code applications see related Specification SB-26/SB-26M in
14、 Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This document is not an ASTM stan
15、dard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all case
16、s only the current versionof the standard as published by ASTM is to be considered the official document.*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.E716 Practices
17、for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of ChemicalComposition by Spectrochemical AnalysisE1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission SpectrometryE2422 Digital Reference Images for Inspection of Aluminum Castin
18、gsIEEE/ASTM SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System2.3 AMS Standard:4AMS 2771 Heat Treatment of Aluminum Alloy Castings2.4 American National Standards:5H35.1/H35.1(M) Alloy and Temper Designation System for Aluminum2.5 Military Standards:6MIL-STD-12
19、9 Marking for Shipment and StorageMIL-STD-276 Impregnation of Porous Nonferrous Metal CastingsNAVSEA Technical Publication S9074-AR-GIB-010/2782.6 Federal Standard:6Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.7 Other Standards:7EN 14242 Aluminum and Aluminum Alloys Chemical Analysis Ind
20、uctively Coupled Plasma Optical Emission SpectralAnalysis3. Terminology3.1 DefinitionsRefer to Terminology B881 for definitions of product terms used in this specification.4Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http:/www.sae.org.5Avail
21、able from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600, Arlington, VA 22209, http:/www.aluminum.org/bookstore.6Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.7Available from Europea
22、n Committee for Standardization (CEN), 36 rue de Stassart, 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 elements for which limits are shown in thi
23、s 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 figures used in expressing the specif
24、ied 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 0.200.50 0.150.55 . . . . 0.150.35 0.05A0.102
25、04.0 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 0.15295.0 A02950 remainder 0.71.5 1.0 4.0
26、5.0 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 . 0.35 . 0.25 0.05 0.15C355.0 A33550 remain
27、der 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 0.05 0.25 . 0.50 . 0.25 . 0.35B443.0 A
28、24430 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 9.510.6 . . 0.15 . 0.25 0.05 0.15535.
29、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 remainder 0.15 0.50 0.350.65 0.05 0.60.
30、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 . 6.57.5 . 0.100.20 0.05 0.15850.0 A0
31、8500 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 iron exceeds 0.45 %, manganese content
32、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.B26/B26M 1223.2 sand castinga metal object produced by pouring molten metal into a sand mold and allowin
33、g it to solidify.4. Ordering Information4.1 Orders for material under this specification shall include the following information (1.4 and 1.5):4.1.1 This specification designation (which includes the number, year, and revision letter, if applicable),NOTE 1For inch-pound application, specify Specific
34、ation B26 and for metric 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 part number,4.2 Additionally, orders for material to thi
35、s specification shall include the following information when required by thepurchaser:TABLE 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 thenearest 0.1 ksi and ea
36、ch 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, 10mmANSIDUNS201.0 A02010
37、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 FT625.034.014.021.01.01.0608035
38、5.0 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 40B443.0512.0A24430A05120FF17.017.06.010.03.0.
39、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 38.0 1.5 100T51 32.0
40、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 treatments such as annealing,
41、 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 required.GYield strength to be determined only whe
42、n 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 1234.2.1 Whether chemical analysis and tensile property reports are required (Table 1 and Table 2),4.2.2 Whether castings or test bars, or both, may be a
43、rtificially aged for Alloys 705.0-T5, 707.0-T5, 712.0-T5, and 713.0-T5(10.2) and whether yield strength tests are required for these alloys;4.2.3 Whether test specimens cut from castings are required in addition to, or instead of, separately cast specimens (Sections10 and 13);4.2.4Whether repairs ar
44、e permissible (4.2.4 Whether heat treatment is to be performed in accordance with AMS 2771 (see Section 15),4.2.5 Whether repairs are permissible (16.1),4.2.56 Whether inspection is required at the producers works (Section 18);4.2.67 Whether certification is required (21.1);4.2.78 Whether surface re
45、quirements shall be checked against observational standards where such standards are established(19.1);4.2.89 Whether liquid penetrant inspection is required (19.2);4.2.94.2.10 Whether radiographic inspection is required and, if so, the radiographic grade of casting required (19.3, Table 3);4.2.101
46、Whether foundry control is required (Section 9); and4.2.11Whether Practice4.2.12 Whether Practice B660 applies and, if so, the levels of preservation, packaging, and packing required (23.4).5. Quality Assurance5.1 Unless otherwise specified in the contract or purchase order, the producer shall be re
47、sponsible for the performance of allinspections and test requirements specified herein. Unless disapproved by the purchaser, the producer may use his own or any othersuitable facilities for the performance of the inspection and test requirements specified herein. The purchaser shall have the rightto
48、 perform any of the inspections and tests set forth in this specification where such inspections are deemed necessary to confirmthat the material conforms to prescribed requirements.6. Manufacture6.1 The responsibility of furnishing castings that can be laid out and machined to the finished dimensio
49、ns within the permissiblevariations specified, as shown on the blueprints or drawings, shall rest with the producer, except where pattern equipment isfurnished by the purchaser.7. Chemical Composition7.1 The Product shall conform to the chemical composition limits prescribed in Table 1. Conformance shall be determined bythe producer by taking samples at the time castings are poured in accordance with Practice E716 and analyzed in accordance withTest Methods E607, E1251, or E34, or EN 1
