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1、 ENGINEERING STANDARDS Material Specification Plastics GMP.PA66.090 Nylon 66 50% Glass Reinforced, Partially Aromatic Copyright 2005 General Motors Corporation All Rights Reserved August 2005 Originating Department: North American Engineering Standards Page 1 of 3 1 Scope This specification covers t
2、he properties of.a glass reinforced, heat stabilized partially aromatic polyamide with polyamide 66. 1.1 Symbol. The material abbreviation according to ISO 11469 is: PA66-50GF 1.2 Typical Application. Typical applications include the following: Mirror Brackets. 2 References Note: Only the latest app
3、roved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ASTM D789 ISO 1872-2 ISO 75 ISO 3146 ISO 178 ISO 3451/1 ISO 179 ISO 10350-1 ISO 294 ISO 11357-3 ISO 527 ISO 15512 ISO 1183 2.2 GM Standards/Specifications. GM9538P GMW3059 GMW3001 GMW3116 GMW3013 3 Requ
4、irements 3.1 Requirements on Delivery. Important physical, mechanical and thermal properties that characterize the material are summarized in charts. The color shall be specified on drawings, in material specifications and otherwise. 3.2 Requirements on Test Specimens Unless otherwise specified, inj
5、ection molding of test specimens shall be accomplished per ISO 294 with the conditions for injection molding from ISO 1872-2. Also, unless otherwise specified, test methods and specimen dimensions are to be in accordance with GMW3013 (mainly per ISO 10350-1). All values indicated herein are based on
6、 material considered to be in the dry-as-molded state with moisture content of 0.2% maximum (ISO 15512, Method A or ASTM D789 or equivalent). Immediately after molding, specimens shall be sealed in moisture-proof containers and stored at 22 3C for at least 24 h prior to test as specified in ISO 1874
7、-2. All tests shall be performed on unannealed specimens immediately after their removal from the containers in a controlled atmosphere of 22 3C and 50 5% RH unless otherwise specified. In addition, tests specified at temperatures below or above 22 3C shall be conducted at the specified temperature
8、using specimens conditioned at the specified temperature for 4 h minimum. 3.3 Requirements on Parts. The requirements listed in GMW3013 shall be fulfilled. 3.4 Mechanical Requirements. See Table 1. 3.5 Physical Requirements. See Table 2. 4 Manufacturing Process Not applicable 5 Rules and Regulations
9、 5.1 All materials supplied to this specification must comply with the requirements of GMW3001, Rules and Regulations for Material Specifications. 5.2 All materials supplied to this specification must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 6 Approved
10、 Sources Engineering qualification of an approved source is required for this specification. Only sources listed in the GM Materials File (i.e., MATSPC) under this specification number have been qualified by engineering as meeting the requirements of this specification. Copyright General Motors Nort
11、h America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:26:02 MDTNo reproduction or networking permitted without license from IHS -,-,- GMP.PA66.090 GM ENGINEERING STANDARDS Copyright 2005 General Motors Corporation All Rights
12、Reserved Page 2 of 3 August 2005 Table 1: Mechanical Requirements Mechanical Properties Standard Unit Values Tensile modulus ISO 527-1/2, Test speed 1 mm/min; between 0.05% to 0.25% strain MPa 17 000 min. Tensile Stress at Break ISO 527-1/2, Test speed 5 mm/min; MPa 200 Flexural Modulus ISO 178 Test
13、 speed 2 mm/min, 64 mm span, chord (0.05 to 0.25% strain) MPa 13 500 Stress at break after Heat Aging Note 1 ISO 527-1/2, 5 mm/min; % retain 75 minimum Charpy impact strength +23C ISO 179/ 1eU edgewise impact kJ/m 10 minimum Charpy impact strength 40C ISO 179/ 1eU edgewise impact kJ/m 10 minimum Cha
14、rpy notched impact after Heat Aging, +23C Note 1 ISO 179/ 1eA edgewise impact % retain 75 minimum Note 1: Properties measured after heat aging 1000 5 hours at 140 3 C according to ISO 188 method A (air oven method). Property retention as indicated relative to unaged specimens tested concurrently. No
15、tch Charpy or Izod impact specimens prior to aging. Table 2: Physical Requirements Physical Properties Standard Unit Values Water Content as recieved ISO 15512. Method A or B % 0.10 maximum Density ISO 1183/A, 10 x 10 x 4 g/cm 1.54 to 1.64 Ash Filler = Glass Fiber ISO 3451/4, % by mass 48 to 52 Melt
16、ing temperature ISO 3146 Method A, Method B or ISO 11357-3 C 255 to 265 HDT - 1.8 MPa ISO 75-1/2 for both soft and rigid materials, test flatwise, unannealed C 230 minimum Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS
17、Not for Resale, 06/23/2008 23:26:02 MDTNo reproduction or networking permitted without license from IHS -,-,- GM ENGINEERING STANDARDS GMP.PA66.090 Copyright 2005 General Motors Corporation All Rights Reserved Page 3 of 3 August 2005 7 Coding System This material specification shall be referenced in
18、 other documents, drawings, VTS, CTS, etc. as follows: GMP.PA66.090 8 Release and Revisions 8.1 Release. This standard originated in February 1999 It was first approved by the GMNA Plastics Technical Development Group in June 2005. It was first published in August 2005. Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:26:02 MDTNo reproduction or networking permitted without license from IHS -,-,-