1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 10 09 Revised Para 3.0 inserted; para 3.1, 3.5 and 4 deleted 1993 06 10 C10309021 Released A4 J.C. Webster NAAO, R. Cooper EAO 1988 02 25 SM/ER 2761TC Final Release N.P. Riley, EAO Printed copies are uncontrolled Copyright 2003, Ford Glob
2、al Technologies, Inc. Page 1 of 3 NICKEL, CHROMIUM, MANGANESE AND SILICON WSD-M6A105-A ALLOYED ELECTRODE NICKEL, CHROMIUM, MANGANESE AND SILICON WSD-M6A105-A2 ALLOYED ELECTRODE, GRAIN STABILIZED NICKEL, MANGANESE AND SILICON ALLOYED WSD-M6A105-A3 ELECTRODE NICKEL, CHROMIUM AND IRON ALLOYED ELECTRODE
3、 WSD-M6A105-A4 1. SCOPE The materials defined by these specifications are nickel, chromium manganese silicon alloys. 2. APPLICATION These materials were originally released for side electrodes in spark plug applications. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material sup
4、pliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION, weight, % A A2 A3 A4 Nickel 95 min 94.5 min 94.0 - 96.0 76.0 - 78.0 Chromium 2 max 2 max 0.20 max 14.0 - 15.5 Manganese 1.2 - 2.5 1.2 - 2.5 3.75 - 4.25 0.
5、2 - 0.5 Silicon 0.6 max 0.6 max 0.75 - 1.25 0.2 - 0.5 Copper 0.5 max 0.5 max 0.10 max 0.5 max Iron 1.0 max 2.0 max 0.50 max 7.0 - 8.0 Carbon 0.1 max 0.1 max 0.05 max 0.05 max Titanium - 0.2 - 0.4 0.15 max 0.35 max Zirconium - 0.1 - 0.2 - - Aluminum - - 0.10 max 0.25 max Chemical composition, includi
6、ng permitted impurity levels, will form part of the agreed control plan. ENGINEERING MATERIAL SPECIFICATIONWSD-M6A105-A/A2/A3/A4Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 2 of 3 3.3 MECHANICAL PROPERTIES 3.3.1 Tensile Properties (ISO 6892/ASTM E 8M) A/A2 A3 A
7、4 Ultimate Tensile Strength, MPa 430 - 500 N/A 570 - 620 0.2 Proof Stress, MPa, min 180 N/A 250 - 300 Elongation, % 35 min 30 - 42 - in 250 mm Round Material, % - - 8 - 25 (Solid Centre Electrode) Rectangular Material, % - - 34 - 42 Round Material, % - - 46 - 72 (Copper-cored Centre Electrode, Gauge
8、 Length: 200 mm) 3.3.2 Hardness, HV (ISO 6507/2; ASTM E 384) A/A2 A3 A4 100 - 150 N/A - Round Material - - 220 - 250 (Solid Centre Electrode) Rectangular Material - - 140 - 170 Round Material - - 120 - 160 (Copper-cored Centre Electrode) The processing route and optimum mechanical properties for fab
9、rication, welding and service performance shall form part of the agreed control plan. ENGINEERING MATERIAL SPECIFICATIONWSD-M6A105-A/A2/A3/A4Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 3 of 3 3.4 MICROSTRUCTURE (ASTM E 112) The microstructure shall be annealed equiaxed single phase with the following grain size number: A/A2 A3 A4 5 - 7 5 - 7 - Round Material - - 7 - 10 (Solid Centre Electrode) Rectangular Material - - 7 - 10 Round Material - - 4 - 10 (Copper-cored Centre Electrode)
