1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 03 06 N Status No usage or replacement G. Weber, NA 2003 10 13 Revised Para 3.0 inserted; para 3.9 and 4 deleted 1983 07 07 Released CEN2, C3N2, CGN2-896134-C Controlled document at www.MATS Copyright 2012, Ford Global Technologie
2、s, Inc. Page 1 of 2 POWDER METAL - AIR HARDENING NICKEL STEEL ESA-M10A67-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an air hardening nickel steel with high strength, hardness and density. 2. APPLICATION This specification was released originally for materi
3、als used in tilt steering column lock levers. 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). 3.1 CHEMICAL COMPOSITION Carbon 0.4 - 0.7 Nickel 8.5 -
4、10.5 Molybdenum 0.4 - 0.6 Manganese 0.3 max Sulfur 0.05 max Phosphorus 0.04 max Silicon 0.1 max Total Other Elements 0.1 max Iron Balance 3.2 TENSILE STRENGTH, min 120 ksi (ASTM E 8, Flat Unmachined Test Bar (830 MPa) 0.2 in (5 mm)/min) 3.3 YIELD STRENGTH, min 80 ksi (550 MPa) (ASTM E 8, Flat Unmach
5、ined Test Bar 0.2 in (5 mm)/min) 3.4 ELONGATION, min 2% (ASTM E 8, Flat Unmachined Test Bar 0.2 in (5 mm)/min) 3.5 IMPACT STRENGTH, CHARPY, min 25 ftlb (34 J) (ASTM E 23, Unnotched) ENGINEERING MATERIAL SPECIFICATION ESA-M10A67-A Copyright 2012, Ford Global Technologies, Inc. Page 2 of 2 3.6 COMPRES
6、SIVE STRENGTH (ASTM E 9, 0.2 in (5 mm)/min) Specimen Size: 0.374 in (9.50 mm) +/- 0.002 in (0.051 mm) diameter, 1.13 in (28.70 mm) +/- 0.05 in (0.13 mm) length. Compressive Yield Strength, min 130 ksi (900 MPa) Ultimate Compressive Strength, min 195 ksi (1340 MPa) 3.7 HARDNESS-ROCKWELL “C“, min 20 (ASTM E 18) 3.8 DENSITY 7.2 - 7.5 g/cm3 (ASTM B 328)
