1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revision Rev 03 2014 06 10 N Status Replaced by WSS-M2A175-A4 C. Mracna, NA 2008 05 15 Revised Revised 1, 2, 3, 4, 3.10, 4.2.2 local procedure V1P-03-132 refers. Exceptions to this (for PAG) shall be authorized by Materials Engineering. (*the currently
2、 released level) 4.2.2 Use of Engineering Specifications for Thickness This para is for the Americas ONLY. Use -ES-8S43-1N260-A(-)* (*the currently released level) 4.3 MECHANICAL PROPERTIES, TYPICAL VALUES (ASTM B 557M, ASTM E 646, EN 10002) (Thickness 1 max 2.5 mm, Gauge Length 80mm) AS RECEIVED (T
3、YPICAL VALUES) Yield Strength (0.2% offset), MPa 110 Tensile Strength, MPa 195 AFTER 2% STRAIN AND PAINT BAKE 20 MINS AT 185 C Yield Strength, Min, MPa 150 Yield Strength, Typical, MPa 180 Note: 2 % strain and representative structural paint bake will result in a typical increase of 40 MPa over the
4、incoming yield strength. ENGINEERING MATERIAL SPECIFICATION WSS-M2A170-A Copyright 2014, Ford Global Technologies, LLC Page 5 of 6 4.4 YIELD STRENGTH v STRAIN AND BAKE CYCLE (ASTM B 557M, thickness 1 3.0mm) and (ASTM E 646) AFTER HEAT AGING 15 MINUTES Strain (%) Bake Temp (C) YIELD STRENGTH (MPa) UT
5、S (MPa) ELONG. (%) 0 160 117 213 21.5 0 180 123 214 20.9 0 200 165 232 14.7 2 160 150 222 18.2 2 180 157 224 17.7 2 200 203 245 11.3 5 160 177 241 16.3 5 180 187 252 15.3 5 200 227 271 10.8 AFTER HEAT AGING 30 MINUTES Strain (%) Bake Temp (C) YIELD STRENGTH (MPa) UTS (MPa) ELONG. (%) 0 160 122 218 2
6、1.9 0 180 141 225 18.1 0 200 207 254 10 2 160 154 226 18.4 2 180 176 238 17 2 200 230 262 10.1 5 160 182 241 16.1 5 180 205 252 13.9 5 200 249 271 8.3 4.5 REFERENCE DOCUMENTS The reference documents are: ASTM E 34 ES-YC15-1N260 ASTM E 227 ASTM E 607 ASTM E 1251 ASTM B 557M FLTM BA 113-07 WSS-M2P180-
7、B ASTM E 646 ES 2W93 F00004 ES 6G91 1N260 ESB-M2P129-B WSS-M99P1111-A WSS-M10P12-A1 EN 10002 ENGINEERING MATERIAL SPECIFICATION WSS-M2A170-A Copyright 2014, Ford Global Technologies, LLC Page 6 of 6 4.6 METHOD OF SPECIFYING The specification on the Engineering Drawing shall include, if applicable, t
8、he lubricant defined by JMS.20.19.10 and the pretreatment defined by WSS-M10P12-A1. e.g. AC300 with dry lube and pretreatment would be specified thus: Aluminum to WSS-M2A170-A, Pretreatment to WSS-M10P12-A1, Lubricated to JMS.20.19.10. 4.7 CROSS REFERENCE OF SPECIFICATIONS (FOR GUIDANCE ONLY) FORD SPECIFICATION TYPICAL ALLOY GRADE WSS-M2A170-A AC300 AA 6014
