1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 03 06 N Status No usage or replacement G. Weber, NA 2003 10 14 Revised Para 3.0 inserted; para 3.1, 3.6 and 4 deleted 1985 04 02 CE3PRD863100E149 Released J. Webster Controlled document at www.MATS Copyright 2012, Ford Global Tech
2、nologies, Inc. Page 1 of 1 SINTERED IRON, 12% CHROMIUM-NICKEL- ESE-M10A70-A MOLYBDENUM ALLOY NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a sintered iron alloy powdered metal. 2. APPLICATION This specification was released originally for a material used for a
3、camshaft lobe piece and eccentric cam piece. 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 COMPOSITION (weight %) (ASTM A 751) Total C
4、arbon 1.60 - 2.60 Manganese 0.50 max Phosphorus 0.30 - 0.70 Sulfur 0.05 max Silicon 0.50 - 1.00 Chromium 10.00 - 12.50 Nickel 1.00 - 2.50 Molybdenum 0.50 - 1.50 Others 1.00 max Iron Remainder 3.3 DENSITY, min 7.45 g/cm3 (ASTM B 328/ISO 2738 3.4 HARDNESS See Engineering (FLTM CA 001-04) drawing 3.5 M
5、ICROSTRUCTURE (ASTM E 3/ASTM E 562) The matrix microstructure shall consist of martensite and bainite with pearlite not to exceed 20% and retained austenite not to exceed 10% with uniformly distributed carbide and phosphoric iron eutectic particles. Porosity shall not exceed 8% with a maximum pore size of 150 micrometre.
