ASTM B806-2014 Standard Specification for Copper Alloy Permanent Mold Castings for General Applications《通用铜合金永久铸模铸件的标准规格》.pdf
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1、Designation: B806 08aB806 14Standard Specification forCopper Alloy Permanent Mold Castings for GeneralApplications1This standard is issued under the fixed designation B806; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year o
2、f last revision. 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 U.S. Department of Defense.1. Scope*1.1 This specification establishe
3、s requirements for copper alloy2 permanent mold castings for general applications. Nominalcompositions of the alloys under this specification are shown in Table 1.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to
4、SI units that are provided for information only and are not considered standard.2. Referenced Documents2.1 The following documents of the issue in effect on date of material purchase form part of this specification to the extentreferenced herein:2.2 ASTM Standards:3B208 Practice for Preparing Tensio
5、n Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and ContinuousCastingsB824 Specification for General Requirements for Copper Alloy CastingsE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)3. Ordering Information3.1 Orders for casting under this
6、specification shall include the following information:3.1.1 Quantity of castings required,3.1.2 Copper Alloy UNS number (Table 2) and temper (as-cast, heat-treated, and so forth), (4.2),3.1.3 Specification number, title, and year of issue.3.1.4 Pattern or drawing number, and condition (cast, machine
7、d, and so forth),3.1.5 Pressure test requirements, if specified in the purchase order (Specification B824),3.1.6 Soundness requirements, if specified in the purchase order (Specification B824),3.1.7 Repair of castings (Section 7),3.1.8 Certification, if specified in the purchase order (Specification
8、 B824),3.1.9 Foundry test report, if specified in the purchase order (Specification B824),3.1.10 Witness inspection, if specified in the purchase order (Specification B824),3.1.11 Product marking, if specified in the purchase order (Specification B824), and3.1.12 Castings for Seawater Service (Secti
9、on 4).3.2 When material is purchased for agencies of the U.S. government, the Supplementary Requirements of Specification B824may be specified.1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on C
10、astingsand Ingots for Remelting.Current edition approved Oct. 1, 2008April 1, 2014. Published November 2008May 2014. Originally approved in 1990. Last previous edition approved in 2008 asB806 08.B806 08a. DOI: 10.1520/B0806-08A.10.1520/B0806-14.2 The UNS system for copper and copper alloys (see Prac
11、tice E527) is a simple expansion of the former standard designation system accomplished by the addition of aprefix “C” and a suffix“ 00”.suffix “00”. The suffix can be used to accommodate composition variations of the base alloy.3 For referencedASTM standards, visit theASTM website, www.astm.org, or
12、 contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes hav
13、e 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 cases only the current versionof the standard as published by ASTM is to be considered the official doc
14、ument.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Materials and Manufacture4.1 For better corrosion resistance in sea water applications, castings in CopperAlloy
15、UNS No. C95800 shall be given a temperanneal heat treatment at 1250 6 50F (675 6 10C) for 6 h minimum. Cooling shall be the fastest means possible that will notcause excess distortion or cracking. Propeller castings shall be exempt from this requirement.5. Chemical Composition5.1 The castings shall
16、conform to the chemical requirements specified in Table 2.5.2 These specification limits do not preclude the presence of other elements. Limits may be established for unnamed elementsby agreement between the manufacturer and the supplier and the purchaser. Copper or zinc may be given as the remainde
17、r andmay be taken as the difference between the sum of all the elements analysedanalyzed and 100 %.6. Mechanical Properties6.1 Mechanical properties shall be determined from separately cast test bar castings and shall meet the requirements shown inTable 3.7. Casting Repair7.1 Alloys included in this
18、 specification are generally weldable. Weld repairs may be made at the manufacturers discretion.7.2 The castings shall not be impregnated without approval of the purchaser (3.1.7).8. General Requirements8.1 Material furnished under this specification shall conform to the applicable requirements of S
19、pecification B824.9. Sampling9.1 A lot shall be as defined in Specification B824 with the exception that a lot shall consist of not more than 1000 lbs (455kg) of castings (gates and risers removed).9.2 Test bar castings shall be cast to the form and dimensions shown in Figs. 8 or 10 using the dies s
20、hown in Figs. 7 or 9 ofPractice B208.TABLE 1 Nominal CompositionClassificationCopperAlloyUNS No.Nominal CompositionCopper Aluminum Iron Manganese Nickel (inclCobalt) Silicon Lead Zinc TinAluminum bronze C95300C95400C9541089.085.084.010.011.010.01.04.04.0.2.0.Nickel aluminum bronze C95500C9580081.081
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