1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (412) 772-8512 FAX: (412) 776-0243TO PLACE A DOCUMENT
3、 ORDER; (412) 776-4970 FAX: (412) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1988 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ468RE
4、AF.DEC88Issued 1934-06Reaffirmed 1988-12Superseding J468 JUN83ZINC ALLOY INGOT AND DIE CASTING COMPOSITIONSForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.1. ScopeSIMILAR SPECIFICATIONSUNS Z33521, former SAE 903, ingot is similar to ASTM B
5、240-79,Alloy AG40A; and UNS Z33520, former SAE 903, die casting is similar to ASTM B 86-76, Alloy AG40A. UNSZ35530, former SAE 925, ingot is similar to ASTM B 240-79, Alloy AC41A; and UNS Z35531, former SAE 925,die casting is similar to ASTM B 86-82a, Alloy AC41A.2. References2.1 Applicable Publicat
6、ionsThe following publications form a part of the specification to the extent specifiedherein. Unless otherwise indicated the lastest revision of SAE publications shall apply.2.1.1 ASTM PUBLICATIONAvailable from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM B 86-76Specification
7、for Zinc-Alloy Die CastingsASTM B 86-82aSpecification for Zinc-Alloy Die CastingsASTM B 240-79Specification for Zinc Alloys in Ingot Form for Die CastingsSAE J468ReaffirmedDEC88-2-PREPARED BY THE SAE CAST ALUMINUM COMMITTEETABLE 1ZINC ALLOY INGOT AND DIE CASTING COMPOSITIONSComposition(1)(2), %1. Pe
8、rcentages given are maximum except where indicated as a range. Zinc is remainder.2. Zinc alloy die castings may contain nickel, chromium, silicon, and manganese in amounts up to their solubility (0.02, 0.02, 0.035, and about 0.5%, respectively) at the freezing temperature. No harmful effects have ev
9、er been noted due to the presence of these elements in these concentrations and, therefore, analyses are not required for these elements.Al Cu Mg Fe Pb Cd SnIngot (UNS Z33521) 3.94.3 0.10 0.0250.05 0.075 0.004 0.003 0.002Castings (UNS Z33520) 3.54.3 0.25 (3)3. For the majority of commercial applicat
10、ions, a copper content in the range of 0.25 to 0.75% will not adversely affect the serviceability of die castings and should not serve as a basis for rejection.0.0200.05 (4)4. Magnesium may be as low as 0.005% provided that at least 0.005% nickel is present, and lead, cadmium, and tin do not exceed
11、0.0030, 0.0020, and 0.0010%, respectively.0.10 0.005 0.004 0.003SAE 903Ingot (UNS Z35530) 3.94.3 0.751.25 0.030.06 0.075 0.004 0.003 0.002Castings (UNS Z35531) 3.54.3 0.751.25 0.030.08 0.10 0.005 0.004 0.003SAE 925SAE J468 Reaffirmed DEC88RationaleNot applicable.Relationship of SAE Standard to ISO StandardNot applicable.ApplicationNot applicable.Reference SectionASTM B 86-76Specification for Zinc-Alloy Die CastingsASTM B 86-82aSpecification for Zinc-Alloy Die CastingsASTM B 240-79Specification for Zinc Alloys in Ingot Form for Die CastingsDeveloped by the SAE Cast Aluminum Committee
