1、Designation:B94309B94313 Standard Specication for Zinc and Tin Alloy Wire Used in Thermal Spraying for Electronic Applications 1 This standard is issued under the xed designation B943; the number immediately following the designation indicates the year of original adoption or, in the case of revisio
2、n, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval. 1. Scope* 1.1 Thisspecicationcoverszincandtinalloywire,includingzinc-aluminum,zinc-aluminum-copper,zinc-tin,zinc-tin
3、-copper and tin-zinc, used as thermal spray wire in the electronics industry. 1.1.1 Certain alloys specied in this standard are also used as solders for the purpose of joining together two or more metals at temperatures below their melting points, and for other purposes (as noted in Annex A1). Speci
4、cation B907 covers Zinc, Tin and Cadmium Base Alloys Used as Solders which are used primarily for the purpose of joining together two or more metals at temperatures below their melting points and for other purposes (as noted in theAnnex part of Specication B907). Specication B833 covers Zinc and Zin
5、cAlloyWire forThermal Spraying (Metallizing) used primarily for the corrosion protection of steel (as noted in the Annex part of Specication B833). 1.1.2 Tinbasealloysareincludedinthisspecicationbecausetheiruseintheelectronicsindustryissimilartotheuseofcertain zinc alloys but different than the majo
6、r use of the tin and lead solder compositions specied in Specication B32. 1.1.3 These wire alloys have a nominal liquidus temperature not exceeding 850F (455C). 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to S
7、I units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identie
8、d in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use. 2. Referenced Documents 2.1 ASTM Standards: 2 B32Specication
9、 for Solder Metal B833Specication for Zinc and Zinc Alloy Wire for Thermal Spraying (Metallizing) for the Corrosion Protection of Steel B899Terminology Relating to Non-ferrous Metals and Alloys B907Specication for Zinc, Tin and Cadmium Base Alloys Used as Solders E29Practice for Using Signicant Digi
10、ts in Test Data to Determine Conformance with Specications E46Test Methods for Chemical Analysis of Lead- and Tin-Base Solder (Withdrawn 1994) 3 E51Method for Spectrographic Analysis of Tin Alloys by the Powder Technique (Withdrawn 1983) 3 E87Methods for Chemical Analysis of Lead, Tin, Antimony and
11、Their Alloys (Photometric Method) (Withdrawn 1983) 3 B527Test Method for Determination of Tap Density of Metallic Powders and Compounds E536Test Methods for Chemical Analysis of Zinc and Zinc Alloys 2.2 Federal Standard: 4 Fed. Std. No. 123Marking for Shipment (Civil Agencies) 1 This specication is
12、under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.04 on Zinc and Cadmium. Current edition approved Oct. 1, 2009Feb. 1, 2013. Published November 2009March 2013. Originally approved in 2005. Last previous edition approved in
13、 20052009 as B943-05.B943 09. DOI: 10.1520/B0943-09.10.1520/B0943-13. 2 ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatserviceastm.org.For Annual Book ofASTM Standards volume information, refer to the standards Document Summary page on the ASTM website. 3 T
14、he last approved version of this historical standard is referenced on www.astm.org. 4 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil. This document is not anASTM standard and is intended only t
15、o provide the user of anASTM standard an indication of what changes have been made to the previous version. Because it 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 version
16、of the standard as published by ASTM is to be considered the official document. *ASummary 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 12.3 ISO Standards: 5 ISO 3815-1Zinc and
17、zinc alloys Part 1: Analysis of solid samples by optical emission spectrometry ISO 3815-2Zinc and zinc alloys Part 2: Analysis by inductively coupled plasma optical emission spectrometry 2.4 Military Standard: 4 MIL-STD-129Marking for Shipment and Storage 3. Terminology 3.1 Terms shall be dened in a
18、ccordance with Terminology B899. 4. Classication 4.1 Type DesignationThe type designation uses the following symbols to properly identify the material: 4.1.1 Alloy CompositionThe composition is identied by a two or four-letter symbol and a number. The letters typically indicate the chemical symbol f
19、or the critical element(s) in the wire and the number indicates the nominal percentage, by weight, of the primary element in the wire (see Table 1). 5. Ordering Information 5.1 Orders for material under this specication indicate the following information, as required, to adequately describe the desi
20、red material. 5.1.1 Type designation (see 4.1), 5.1.2 Detailed requirements for special forms, 5.1.3 Dimensions of wire (see 9.2), 5.1.4 Unit weight, 5.1.5 Packaging (see Section 17), 5.1.6 Marking (see Section 16), 5.1.7 ASTM Specication number and issue, marked on (a) purchase order and (b) packag
21、e or spool, and 5.1.8 Special requirements, as agreed upon between supplier and purchaser. 6. Materials and Manufacture 6.1 The producer shall have each lot of wire as uniform in quality as practicable and of satisfactory appearance in accordance with best industrial practices. 5 Available from Amer
22、ican National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org. TABLE 1 Zinc and Zinc Alloy Wire Compositions Composition % A,B,C Temperature F C F C UNS D Cd Zn Sn Pb Sb Ag Cu Al Bi As Fe Ni Mg Solidus Liquidus Zn 98 Z30402 0.005 REM 0.003 0.005 0.10 0.0
23、15 0.005 1.52.5 0.02 0.002 0.02 0.005 0.02 720 382 770 410 Zn 96 XXXX E 0.005 REM 0.003 0.005 0.10 0.015 0.005 3.54.5 0.02 0.002 0.02 0.005 0.02 720 382 720 382 Zn 96 Z30506 0.005 REM 0.003 0.005 0.10 0.015 0.005 3.54.5 0.02 0.002 0.02 0.005 0.02 720 382 720 382 Zn 95 Z30502 0.005 REM 0.003 0.005 0.
24、10 0.015 0.005 4.55.5 0.02 0.002 0.02 0.005 0.02 720 382 720 382 Zn 94 XXXX E 0.005 REM 0.003 0.005 0.10 0.015 1.31.5 3.54.5 0.02 0.002 0.02 0.005 0.02 730 388 734 390 Zn 94 Z34530 0.005 REM 0.003 0.005 0.10 0.015 1.31.5 3.54.5 0.02 0.002 0.02 0.005 0.02 730 388 734 390 Zn 87 Z30705 0.005 REM 0.003
25、0.005 0.10 0.015 0.005 12.513.5 0.02 0.002 0.05 0.005 0.02 720 382 815 435 Zn 85 Z30702 0.005 REM 0.003 0.005 0.10 0.015 0.005 14.016.0 0.02 0.002 0.06 0.005 0.02 720 382 842 450 Zn/Sn 50 Z56900 0.005 REM 49.051.0 0.05 0.10 0.015 0.005 0.100 0.02 0.002 0.02 0.005 0.02 388 198 680 360 Zn/Sn 49 Z56930
26、 0.005 REM 47.550.5 0.05 0.10 0.015 0.81.3 0.100 0.02 0.002 0.02 0.005 0.05 392 200 592 311 Sn/Zn 60 XXXX E 0.005 REM 59.061.0 0.005 0.10 0.015 0.01 0.100 0.005 0.002 0.02 0.005 0.05 390 199 666 352 Sn/Zn 60 L13281 0.005 REM 59.061.0 0.005 0.10 0.015 0.01 0.100 0.005 0.002 0.02 0.005 0.05 390 199 66
27、6 352 Sn/Zn 70 XXXX E 0.005 REM 69.071.0 0.005 0.10 0.015 0.01 0.100 0.005 0.002 0.02 0.005 0.05 390 199 601 316 Sn/Zn 70 L13271 0.005 REM 69.071.0 0.005 0.10 0.015 0.01 0.100 0.005 0.002 0.02 0.005 0.05 390 199 601 316 Sn/Zn 75 XXXX E 0.004 REM 74.076.0 0.20 0.10 0.015 0.05 0.050 0.020 0.020 0.02 0
28、.005 0.05 390 199 572 300 Sn/Zn 75 L13261 0.004 REM 74.076.0 0.20 0.10 0.015 0.05 0.050 0.020 0.020 0.02 0.005 0.05 390 199 572 300 Sn/Zn 80 XXXX E 0.005 REM 79.081.0 0.05 0.10 0.015 0.01 0.100 0.005 0.002 0.02 0.005 0.05 390 199 536 280 Sn/Zn 80 L13251 0.005 REM 79.081.0 0.05 0.10 0.015 0.01 0.100
29、0.005 0.002 0.02 0.005 0.05 390 199 536 280 A For purposes of acceptance and rejection, the observed value or calculated value obtained from analysis should be rounded to the nearest unit in the last right-hand place of gures, used in expressing the specied limit, in accordance with the rounding pro
30、cedure prescribed in Practice E29. B All values not given as a range are maximum values unless stated otherwise. C Remainder (REM) determined arithmetically by difference. D The USN designations were established in accordance with Practice B527. The last digit of a UNS number differentiates between
31、alloys of similar composition. E UNS numbers to be added when assigned. B94313 27. Chemical Composition 7.1 The wire shall conform to the requirements prescribed in Table 1. 7.2 The manufacturer shall perform chemical analyses as directed in Test Methods E536 or by other methods of at least equal ac
32、curacy to conrm that the wire conforms to the requirements of composition. In case of dispute, analysis byTest Methods E536 shall be accepted.Analysis of alloy wires not covered by Test Methods E536 shall be agreed upon between the manufacturer and the purchaser. NOTE 1By mutual agreement between su
33、pplier and purchaser, analysis may be required and limits established for elements or compounds not specied in Table 1. 8. Dimensions and Unit Weight 8.1 The dimensions and unit weight of wire are specied in 5.1.3 and 5.1.4. The tolerance on specied outside diameter shall be65% or60.002 in. (0.05 mm
34、), whichever is greater. 9. Workmanship, Finish, andAppearance 9.1 The wire shall be clean and free of corrosion, adhering foreign material, scale, seams, nicks, burrs, and other defects which would interfere with the operation of thermal spraying equipment.The wire shall uncoil readily and be free
35、of bends or kinks that would prevent its passage through the thermal spray gun. 9.2 The wire shall be a continuous length per spool, coil, or drum. Splices or welds are permitted, provided that they do not interfere with the thermal spray equipment or coating process. 9.3 The starting end of each co
36、il shall be tagged to indicate winding direction and to be readily identiable with ASTM designation. 10. Sampling 10.1 Samplingmethodologyshouldensurethatthesampleselectedfortestingisrepresentativeofthematerial.Themethodfor sampling consists of one of the following methods: 10.1.1 Analysis may be pe
37、rformed on nished wire, on material selected when the wire is cast, or on samples taken from semi-nished wire. 10.1.1.1 If the analysis is performed on nished wire, the frequency of sampling for determination of chemical composition shall be in accordance with Table 2. For spools and coils, the samp
38、le is obtained by cutting back 6 ft (1.8 m) of wire from the free end and then taking the next 6 ft for test. In other forms, an equivalent sample is selected at random from the container. 10.1.1.2 If the analysis is performed on material selected while the wire is being cast, at least one sample sh
39、all be selected for each source of molten metal. 10.1.1.3 Iftheanalysisisperformedonsamplestakenfromsemi-nishedproduct,atleastonesampleshallbeanalyzedforeach 10000 lb (4500 kg) or fraction thereof. 10.2 The manufacturer shall determine the diameter of the wire at the end and the beginning of each co
40、ntinuous wire in a production pack, coil, or spool of wire. Each determination shall be the result of at least three measurements. 10.3 The buyer reserves the right to reject wire that, during use, is found to be defective. 11. Specimen Preparation 11.1 Each sample of wire is prepared in accordance
41、with Section 10 as applicable. 12. Test Methods 12.1 Visual and Dimensional Examination: 12.1.1 The wire must be examined to verify that the dimensions, unit weight, and workmanship are in accordance with the applicable requirements. 12.2 Alloy CompositionIn case of dispute, the chemical analysis is
42、 made in accordance with Test Methods E46, E51, E87, E536, ISO 3815-1, or ISO 3815-2. TABLE 2 Frequency of Sampling colwidth=“1.23in“/COLSPEC Size of Lot, lb (kg) Number of Samples (spools, coils, containers or pieces) Up to 1000 (450), incl 3 Over 1000 to 10 000 (450 to 4500), incl 5 Over 10 000 (4
43、500) 10 B94313 313. Inspection 13.1 When specied in the purchase order or contract, the purchaser shall be furnished certication that samples representing each lot have been tested or inspected as directed in this specication and the requirements have been met. When specied in the purchase order to
44、contract, a report of the test results shall be furnished. 13.2 An inspection lot shall be dened as a collection of material of the same kind that has been produced to the same specication from the same heat by a single supplier at one time under essentially identical conditions and that are submitt
45、ed for acceptance or retest as a group. 14. Rejection and Rehearing 14.1 Material that fails to conform to the requirements of this specication may be rejected. Rejection must be reported to the producer or supplier promptly and in writing. In case of dissatisfaction with the results of the test, th
46、e producer or supplier may make claim for a rehearing. 15. Certication 15.1 When specied in the purchase order or contract a producers certication must be furnished to the purchaser that the material was manufactured, sampled, tested, and inspected in accordance with this specication and has been fo
47、und to meet the requirements. When specied in the purchase order or contract, a report of the test results must be furnished. 16. Product Marking 16.1 Each spool or container must be marked to show the specication number, type designation, dimensions, and unit weight of wire or other form and lot nu
48、mber. The producers name or trademark must be marked on the spool or container. 17. Packaging and Package Marking 17.1 The material shall be separated by size and prepared for shipment in such a matter as to ensure acceptance by common carrier and to afford protection from the normal hazards of tran
49、sport. 17.2 Packaging materials for electric arc spray wire shall be nonconductive. 17.3 Size(s) of Packaging: 17.3.1 Coil inside diameter may range from 12 to 22 in. (30 to 56 cm). 17.3.2 Coil weight shall be approximately 45 to 55 lb (20 to 25 kg). 17.3.3 Production pack drums shall measure approximately 22 in. (56 cm ) in diameter and approximately 32 in. (81 cm) high. Each drum shall contain a continuous wire, which is coiled around a central core. 17.3.4 Net weight per drum shall be 450 to 550 lb
