NAVISTAR MPAPS K18-5011-2014 RUBBER COATED METALS.pdf
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1、This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. AUGUST 2014 Page 1 of 7 NAVISTAR, INC. Material, Parts, and Process Specifications
2、 (MPAPS) NUMBER: MPAPS K18-5011 Former Designation: EMS D18-5011 TITLE: RUBBER COATED METALS CURRENT REV No.: 1408 DATE: AUGUST 2014 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: EMS D18-5011 Rev. Aug. 2011 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FO
3、R CURRENT REVISION This specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicabi
4、lity of regulatory limits prior to use. Change Notice: Changed to new MPAPS format; editorial changes. 1.0 APPLICATION This specification covers gasket materials intended for use in environments of diesel engines like oils, fuels, coolants, and air. 2.0 SCOPE This specification covers the material r
5、equirements consisting of a solid metal core, coated on both sides with a cured thin layer of an elastomer without an adhesive. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS
6、B-50 specification. 3.0 MATERIAL REQUIREMENTS (ASTM Standards, latest issue) 3.1 Type I 3.1. 1 Mechanical and Physical Properties, 9RMR6, ASTM F868 3.1.1.1 R = ASTM D2000: M2BK707B13Z1Z2Z3Z4Z5Z6Z7Z8 Z1 = Compressibility 45 55% Z2 = Recovery 80% min. Z3 = Volume change, Fuel A, 2% max. Z4 = Volume ch
7、ange, Fuel B, 15% max. Z5 = Volume change, ASTM #1 Oil, 5% max. Z6 = Volume change, ASTM #3 Oil, 10% max. Z7 = NBR polymer M = ASTM A109: Core -SAE 1010 cold rolled steel sheet, Type 1, per MPAPS A-6 Part I HRB 84 min.- full hard 0.015 0.0015 inch thick. NUMBER: MPAPS K18-5011 TITLE: Rubber Coated M
8、etals REVISION: 1408 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. AUGUST 2014 Page 2 of 7 3.1.2 Nitrile Rubber Coating Combined
9、 thickness of coating (top and bottom) - 0.005 0.001 inch thick The rubber coating minimum thickness per side - the thinner thickness of the two cannot be less than the thickness of the other. 3.1.3 Nominal Overall Thickness: 0.020 inch Overall thickness tolerance 0.002 inch 3.1.4 Surface Treatment
10、Rubber is coated with a thin layer of graphite on exposed surfaces as an anti-friction and release agent. 3.2 Type III 3.2.1 Mechanical and Physical Properties, 9RMR6, ASTM F36 3.2.1.1 R = ASTM D2000 M2BK707B13Z1Z2Z3Z4Z5Z6 Z1 = Compressibility 45 55% Z2 = Recovery 80% min. Z3 = Volume change, Fuel B
11、, 15% max. Z4 = Volume change, ASTM #1 Oil, 5% max. Z5 = Volume change, ASTM IPM 903 Oil, 10% max. Z6 = NBR polymer M = ASTM A240/A240M: Core - Stainless Steel Type 301 Strip, Full Hard, per MPAPS A-37 450 20 HV (Vickers) 3.2.2 Nitrile Rubber Coating 0.002 inch thick combined thickness of coating (t
12、op and bottom). Tolerance 0.0004 inch 3.2.3 Nominal Overall Thickness: 0.010 inch Overall thickness tolerance 0.0008 inch 3.2.4 Surface Treatment Rubber is coated with a thin layer of graphite on exposed surfaces as an anti-friction and release agent. 3.3 Type IV 3.3.1 Mechanical and Physical Proper
13、ties, 9RMR6, ASTM F36 3.3.1.1 R = ASTM D2000 M2HK707B13Z1Z2Z3Z4Z5Z6 Z1 = Compressibility 2 - 10% Z2 = Recovery 60% min. Z3 = Volume change, Fuel B, 15% max. Z4 = Volume change, ASTM #1 Oil, 5% max. NUMBER: MPAPS K18-5011 TITLE: Rubber Coated Metals REVISION: 1408 This document is restricted and may
14、not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. AUGUST 2014 Page 3 of 7 Z5 = Volume change, ASTM IPM 903 Oil, 10% max. Z6 = FKM polymer M = ASTM A240/A240M: Core -Sta
15、inless Steel Type 301 Strip, Full Hard, per MPAPS A-37 Core Hardness 450 20 HV (Vickers) 3.3.2 Nominal Overall Thickness: 0.010 inch Overall thickness tolerance 0.0012 inch 3.3.3 FKM Rubber Coating 3.3.4 Surface Treatment Rubber is coated with a thin layer of graphite on exposed surfaces as an anti-
16、friction and release agent. 3.4 Mechanical and Physical Properties to Qualify the Material Mechanical and Physical Properties Type I Type II Type III Type IV Based Metal 1010 CRS 301 SS, FH 301 SS, FH (ASTM D1056) Min. 1.32 N/A Specific Gravity Nom. 1.33 (Slab Data) Max. 1.34 (ASTM D412) Tensile Str
17、ength of Rubber only, psi Min. 1100 Min 1100 Min. 1100 (Slab Data) (ASTM D2240) Min. 70 70 70 Hardness Shore A Nom. 75 75 75 (Slab Data) Max. 80 80 80 (ASTM F36 Procedure G) Min. 45 45 45 Compressibility at Nom. 50 50 50 1000 lbs/in2, % Max. 55 55 55 (Slab Data) (ASTM F36 Procedure G) Recovery From
18、1000 lbs/in2, % (Slab Data) Min. 80 Min. 80 Min. 80 (ASTM D395, Method B) Compression Set 22 hr 158 F & 25% Deflection, % Max. 15 Max. 15 Max. 15 NUMBER: MPAPS K18-5011 TITLE: Rubber Coated Metals REVISION: 1408 This document is restricted and may not be sent outside Navistar, Inc. or reproduced wit
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