1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1980 12 05 Released CE3K-RD863100-E Supp. #3WP 3948-a Page 1 of 2 GASKET, GRAPHITE FOIL AND KNITTED STAINLESS ESA-M8G154-ASTEEL WIRE1. SCOPEThe material defined by this specification is a combination of graphites
2、heet and stainless steel wire, using no binder.2. APPLICATIONThis specification was released originally for material used as a seal ringbetween the exhaust pipe and the engine manifold.3. REQUIREMENTS3.1 COMPOSITION3.1.1 Graphite, Grade “C“ Flexible 20 - 25%3.1.2 Steel Wire, Type 430 - Remainder0.27
3、9 mm diameter3.2 FINISHED MATERIAL3.2.1 Shall be compressed to the dimensions specified on theengineering drawing. T he knitted stainless steel wire shallbe mad e in three strands and spirally wound with graphitefoil in a preform.3.2.2 Gasket shall not split, break, emit noxious or objectionablefume
4、s or have any other deleterious effects in the intendedapplication.3.2.3 Resistance to Heat AgingAfter exposure to 670 EC for one hour (air ), weight loss mustnot exceed 5% of the or iginal part weight and part shall notshow evidence of delamination.3.3 SUPPLIERS RESPONSIBILITYMaterial supplied to t
5、his specification must be equivalent to thatoriginally approved. C hanges in formulation or processing shall notbe made without prior a pproval as described in Supplier Procedure I-A.ENGINEERING MATERIAL SPECIFICATIONESA-M8G154-AWP 3948-b Page 2 of 2 4. APPROVAL OF MATERIALSSupplier s to this specification must be approved by the affected productengineering office. Procedure for gaining approval of a specific materialto a new/existing ES-M specific ation is contained in Supplier Procedure I-A. A pproved new suppliers will be added to the Engineering MaterialsApproved Source List.
