1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 03 06 N Status No usage or replacement G. Weber, NA 2003 10 17 Revised Para 3.0 inserted; para 3.1, 3.6 and 4 deleted 1994 01 27 NEO1E10127076114 Released J.C. Webster, NAAO; C. Sales, EAO Controlled document at www.MATS Copyright
2、 2012, Ford Global Technologies, Inc. Page 1 of 1 SINTERED IRON, 8% CHROMIUM, NICKEL, MOLYBDENUM ALLOY WSE-M10A99-A1 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 fo
3、r material used for eccentric and camshaft lobe pieces. 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 7
4、51/ASTM E 1019) Total Carbon 1.90 - 3.30 Manganese 1.00 max Phosphorus 0.30 - 0.80 Sulfur 0.05 max Silicon 0.50 - 1.50 Chromium 6.50 - 9.50 Nickel 1.00 - 2.50 Molybdenum 1.00 - 3.00 Others 1.00 max Iron Remainder 3.3 DENSITY, min 7.45 g/cm3 (ISO 2738/ASTM B 328) 3.4 APPARENT HARDNESS See Engineering
5、 (ISO 4498/1, ASTM E 18) Drawing 3.5 MICROSTRUCTURE (ASTM E 3/ASTM E 562) The matrix microstructure shall consist of martensite and bainite with pearlite not to exceed 35% and retained austenite not to exceed 15% with uniformly distributed carbide and phosphoric iron eutectic particles. Porosity shall not exceed 8% with a maximum pore size of 150 micrometre.
