1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 04 09 N-STATUS No Replacement Named L. Sinclair, FNA 2003 10 17 Revised Para 3.0 inserted; para 3.1, 3.5 and 4 deleted 1978 06 06 SM/EQ8364T Released Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, Inc. Page 1 of
2、 2 ALUMINUM ALLOY - SILICON - COPPER SS-M2A9001-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an aluminum-silicon-copper alloy in the as cast condition. 2. APPLICATION This specification was released originally for material to be used to manufacture engine cy
3、linder heads. 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 ANALYSIS, % Si 4.0 - 6.7 Cu 1.7 - 4.5 Mg 0.07 - 0.5 Mn 0.2 - 0.7 Ti max 0.2 Al rema
4、inder Allowed Impurities, max Fe 1.0% Zn 1.2% Ni 0.3% Pb 0.2% Sn 0.1% Others single 0.05% total 0.15% ENGINEERING MATERIAL SPECIFICATIONSS-M2A9001-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, Inc. Page 2 of 2 3.3 HARDNESS The hardness measured on machined surfaces must be 70 - 90 HB. 3.4 MECHANICAL PROPERTIES The mechanical properties have to be determined on separately cast test bars. Tensile Strength, min 160 MN/m2Yield Strength, at 0.2%, min 80 MN/m2Elongation at Break, min 1.5%
