1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2015 06 19 A24-NStatus No replacement or current usage G . Weber, NA 2004 07 06 Revised Revised Scope with Cr6+ free statement insert para 3.0, deleted para 3.1, 3.3 inactivate A22, A23 See Fastener Engr for replacement B. Burnside 1991 11 13
2、 C10175600 Released BLE EAO; APC EM&S Controlled document at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 2 FINISHES USED FOR SPECIAL PURPOSES NOT TO BE USED FOR NEW DESIGN WSD-M21P19-A24 WSD-M21P19-A30 WSD-M21P19-A31 1. SCOPE This specification identifies a commonly used hexaval
3、ent chromium free finish for special purposes, its performance requirement and the relevant Ford test procedure. 2. APPLICATION The finish identified in this specification is intended for use on Worldwide Standard and Utility parts requiring a special finish not identified in the S300 series of fini
4、shes in Clause 6 of WX100. The S400 series of finishes has been designated for use in this specification, no other series shall be used. 3. GENERAL REQUIREMENTS Note: The application of any finish defined in this specification invokes all applicable requirements of WX100 paragraph 5. 3.0 STANDARD RE
5、QUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). Part producers using this material in their products, must use Ford approved materials and must conform to a process control plan wh
6、ich has been approved by STA and/or the relevant Materials Activity. 3.2 FINISH REQUIREMENTS WSD-M21P19-A24 S424 Refer to section WX100 in the Worldwide Fastener Standards Book for a description of this specification. Refer to the Product Engineering Materials Approved Source List for approvals to t
7、his specification. ENGINEERING MATERIAL SPECIFICATION WSD-M21P19-A24 WSD-M21P19-A30 WSD-M21P19-A31 Copyright 2015, Ford Global Technologies, LLC Page 2 of 2 WSD-M21P19-A30 S430 Refer to section WX100 in the Worldwide Fastener Standards Book for a description of this specification. Refer to the Produ
8、ct Engineering Materials Approved Source List for approvals to this specification. WSD-M21P19-A31 S431 Refer to section WX100 in the Worldwide Fastener Standards Book for a description of this specification. Refer to the Product Engineering Materials Approved Source List for approvals to this specification.
