1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 09 18 Revised Para 3.0 inserted; para 3.1, 3.6 and 4 deleted 1989 06 28 SM/ER5962TC Released K. Thurgood; J. Lines, EAO; J. A. Ferrari, NAAO Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 1 of 2 ALUMIN
2、IUM ALLOY, BRIGHT ANODISING QUALITY, WSD-M2A146-A1 SHEET AND STRIP WSD-M2A146-A2 WSD-M2A146-A3 WSD-M2A146-A4 1. SCOPE The materials defined by these specifications are aluminum-magnesium alloys, which achieve stated mechanical properties and performance criteria. 2. APPLICATION These materials were
3、released originally for bright anodized exterior and interior automotive trim. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITI
4、ON The chemical composition of any alloy specified on the engineering drawing shall conform to the requirements of SAE and/or Aluminum Association standards. 3.3 MECHANICAL PROPERTIES (ASTM B 557M) ALLOY TYPE ULTIMATE YIELD ELONGATION TENSILE STRENGTH (%) STRENGTH (MPa) (MPa) A1 275 min. 250 min. 2
5、min. A2 255 min. 240 min. 4 min. A3 230 min. 200 min. 7 min. A4 180 min. 145 min. 12 min. 3.4 COLOR AND BRIGHTNESS Components fabricated from these materials shall satisfy the requirements of the styling master, established for each part. ENGINEERING MATERIAL SPECIFICATIONWSD-M2A146-A1/A4Printed cop
6、ies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 2 of 2 3.5 PERFORMANCE All materials to this specification shall be suitable for bright anodizing to meet the performance specification specified on the engineering drawing. 5. GENERAL INFORMATION The information given below is
7、 provided for clarification and assistance in meeting the requirements of these specifications. 5.1 CHEMICAL COMPOSITION Magnesium contents usually range from 0.20 to 2.80%. The total percentage of all elements (except aluminum and magnesium) is unlikely to exceed 0.20. 5.2 APPROVED ALLOYS AND TEMPERS A1 A2 A3 A4 5250 H24 5252 H19 H171 H27 5351 H19 H24 5.3 ALLOY PURITY Higher purity alloys for improved appearance are available in WSD-M2A147-A1/A2
