1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW16606 Polypropylene - Glass Fiber Reinforced/Mineral Filled, Chemically Coupled, Heat Stabilized Homopolymer Copyright 2011 General Motors Company All Rights Reserved June 2011 Originating Department: North American Engineering Standards Pag
2、e 1 of 4 1 Scope 1.1 Material Description. This specification covers the properties of injection moldable, glass fiber reinforced and mineral filled, chemically coupled, heat stabilized polypropylene homopolymer. 1.2 Symbols. The material abbreviations according to ISO 11469 are shown in Table 1. 1.
3、3 Typical Applications. Typical applications include the following: IP retainer and brackets. 1.4 Remarks. The classification into groups is according to the different ranges of mineral and glass fiber content. Additional mineral/glass ranges will be added as they become necessary. 2 References Note
4、: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 75-1 ISO 527-1/2 ISO 75-2 ISO 1183 ISO 75-3 ISO 1873-2 ISO 178 ISO 3167 ISO 179/1eA ISO 3451-1 ISO 179/1eU ISO 4577 ISO 188 ISO 11359-1/2 ISO 294 ISO 11469 ISO 294-4 2.2 GM Stan
5、dards/Specifications. GMW3013 GMW3221 GMW3059 GMW3232 GMW3205 GMW3235 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements Materials approved to this specification shall meet the requirements of GMW3013, General Requirements for Handling of
6、Technical Terms of Delivery for Plastics. 3.1 Requirements on Delivery. Important physical, mechanical, and thermal properties that characterize the material are summarized in Table 1. Note: For each product, the requirements to Table 1 shall be documented by Certification Statement according to GMW
7、3013. The color shall be specified on drawings, in material specifications and otherwise. 3.2 Requirements on Test Specimens. 3.2.1 Unless otherwise specified, injection molding of test specimens shall be accomplished per ISO 294 with the conditions for injection molding from ISO 1873-2. Test method
8、s and specimen dimensions are also to be in accordance with ISO 1873-2 with the following additions: use ISO 3167, Type A, thickness 4 mm, for tensile and flexural properties. 3.2.2 All tests shall be performed on specimens 40 h minimum after molding and immediately following a conditioning period o
9、f 24 h minimum in a controlled atmosphere per GMW3221, Code A unless otherwise specified. All tests shall be performed on unannealed specimens. In addition, test specified at temperatures below or above 23 3 C shall be conducted at the specific temperature using specimens conditioned at specified te
10、mperature for 4 h minimum. 3.2.3 The values specified in Table 1 shall be met by test specimens in natural or black. For integrally colored grades where other additive systems (e.g., stabilizer) are used, the impact values shall not decrease more than 10% from the specified minimum value. 3.3 Chemic
11、al Requirements. All parts manufactured from molding compounds shall be resistant to the media they contact at their place of use. 3.4 Compound Properties. See Table 1. The following are also required for full specification approval. The minimum number of lots per test required is one in natural: Te
12、nsile Modulus, Poissons Ratio, Stress Strain Curve at +23 C, +85 C, -30 C. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16606 Copyrigh
13、t 2011 General Motors Company All Rights Reserved June 2011 Page 2 of 4 3.5 Performance Requirements. Performance requirements shall be specified on part drawings or in component specifications. Table 1: Compound Properties (Black or Natural) Property Test Method Units Nominal Glass Fiber/Mineral Fi
14、ller Percentage ISO Symbol ISO 11469 - PP-(GF10+M10)PP-(GF25+ M10)PP-(GF20+ M15)PP-(M20+ GF15)PP-(GF30+ M10)PP-(GF25+ M15)PP-(GF20+ M20) Ash ISO 3451-1, Method A, at +800 C % by mass 20 2 35 2 35 2 35 2 40 2 40 2 40 2 Density ISO 1183, Method A g/cm Target Range 1.05 0.03 Target Range 1.19 0.03 Targ
15、et Range 1.19 0.03 Target Range 1.19 0.03 Target Range 1.23 0.03 Target Range 1.23 0.03 Target Range 1.23 0.03 Melt Flow Rate MFR230/2.16 Report Results g/10 minutes Report Results Report Results Report Results Report Results Report Results Report Results Report Results Melt Volume Flow Rate MVR230/
16、2.16 Report Results cm/10 minutes Report Results Report Results Report Results Report Results Report Results Report Results Report Results Tensile Modulus ISO 3167, 4 mm thick, Type A bar 1mm/minute MPa 3400 to 4300 5800 to 7000 5600 to 6600 5300 to 6400 6500 to 8100 6300 to 7900 6100 to 7600 Tensil
17、e Strength at Break ISO 527-1/2, specimen 1A, 5 mm/minute MPa 35 to 55 55 to 85 50 to 75 50 to 70 60 to 90 55 to 85 50 to 75 Tensile Strength at Break after Heat Aging Note 1 ISO 527-1/2, specimen 1A, 5 mm/minute % Retention 85Flexural Modulus ISO 178, 2 mm minute MPa 3000 to 4000 5600 to 6600 5300
18、to 6300 5000 to 6000 6200 to 7800 6100 to 7500 6000 to 7400 Charpy Impact Strength Unnotched at +23 C ISO 179/1eU kJ/m Report Results Report Results Report Results Report Results Report Results Report Results Report Results Charpy Impact Strength Unnotched at -30 C ISO 179/1eU kJ/m Report Results Re
19、port Results Report Results Report Results Report Results Report Results Report Results Charpy Impact Strength Unnotched at +23 C after Heat Aging Note 1 ISO 179/1eU % Retention 85 Charpy Impact Strength Notched at +23 C ISO 179/1eA kJ/m 2.5 5 4.5 4 3.5 3 2.5 Copyright General Motors Company Provide
20、d by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16606 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 3 of 4 Property Test Method Units Nominal Glass Fi
21、ber/Mineral Filler Percentage Heat Deflection Temperature, 1.8 MPa Method A ISO 75-1, ISO 75-2, ISO 75-3, flatwise C 90 135 125 130 135 135 130 Shrink, 48 h after Molding, Longitudinal ISO 294-4 Plaques size: 101 x152 x 3.2 mm % Target Range 0.2 to 0.8 Target Range 0.2 to 0.8 Target Range 0.2 to 0.8
22、 Target Range 0.2 to 0.8 Target Range 0.2 to 0.8 Target Range 0.2 to 0.8 Target Range 0.2 to 0.8 Shrink, 48 h after Molding, Transverse ISO 294-4 Plaques size: 101 x152 x 3.2 mm % Target Range 0.5 to 1.1 Target Range 0.5 to 1.1 Target Range 0.5 to 1.1 Target Range 0.5 to 1.1 Target Range 0.5 to 1.1
23、Target Range 0.5 to 1.1 Target Range 0.5 to 1.1 Coefficient of Linear Thermal Expansion (CLTE), Longitudinal, -30 to +30 C ISO 11359-1/2 10-6 mm/mm C Target Range 10 to 50 Target Range 10 to 50 Target Range 10 to 50 Target Range 10 to 50 Target Range 10 to 50 Target Range 10 to 50 Target Range 10 to
24、 50 CLTE, Transverse, -30 to +30 C ISO 11359-1/2 10-6 mm/mm C Target Range 100 to 160 Target Range 100 to 150 Target Range 100 to 150 Target Range 100 to 150 Target Range 100 to 150 Target Range 100 to 150 Target Range 100 to 150 Fogging GMW3235-B-Y1-T2 mg 2 2 2 2 2 2 2 Odor GMW3205 B, Specimen 100
25、x 150 x 3.2 mm 6 minimum Flammability GMW3232, Sample size L x W x H: (355 2 mm) x (100 2 mm) x (2 0.2 mm) mm/minute 100 Oxidation Stability 500 3 h at +150 3 C in an air circulating oven ISO 4577 - No visible indication of local discoloration and/or brittleness by material degradation Note 1: Heat
26、aging for 1000 5 h at +100 3 C according to ISO 188 Method A (air oven method). Aged specimens shall have retention 85% relative to unaged specimens tested concurrently. 4 Manufacturing Process Not applicable. 5 Rules and Regulations 5.1 Legal Regulations. All materials must satisfy applicable laws,
27、 rules, regulations and recommendations valid in the country of usage. 5.2 Language. In the event of conflict between the English and domestic language, the English language shall take precedence. 5.3 Inspection and Rejection. Samples of components or materials released to a GM material specificatio
28、n shall be tested for conformity with the requirements of this material specification and approved by the responsible Engineering department prior to commencement of delivery of bulk supplies. A new approval must be received for any changes, e.g., properties, manufacturing process, location of manuf
29、acture, etc. If not otherwise agreed, all testing and documentation normally required for initial release must be completed. It is the responsibility of the supplier to inform the customer in a timely manner, without solicitation, and to include documentation of all modifications of Copyright Genera
30、l Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16606 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 4 of 4 materials and/or pr
31、ocesses and to apply for a new release. If not otherwise agreed, all release tests shall be repeated and documented by the supplier prior to commencement of delivery of non-conforming bulk supplies. In individual cases, a shorter test can be agreed to between the responsible Engineering department a
32、nd the supplier. 5.4 Initial Source Approval. No shipments shall be made by any supplier until representative initial production samples have been approved by the appropriate Materials Engineering department(s) as meeting the requirements of this specification. 5.5 Material Safety Data Sheets/Safety
33、 Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition of an existing product has occurred, a complete copy of the Material Safety Data Sheet/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System of Classification and Labeling o
34、f Chemicals (GHS) requirements or other country-specific MSDS/SDS requirements. In addition, product MSDS/SDS submissions must be in compliance with specific country General Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available. 5.6 All materials supplied to t
35、his standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 6 Approved Sources Engineering qualifications of an approved source are required for this standard. Only sources listed in the GM Materials File (MATSPC) under this standard number have been qu
36、alified by Engineering as meeting the requirements of this standard. 7 Notes 7.1 Glossary. MATSPC: Global repository of GM approved materials for corresponding GM engineering standards. 7.2 Acronyms, Abbreviations, and Symbols. CLTE Coefficient of Linear Thermal Expansion GF Glass Fiber GHS Globally
37、 Harmonized System M Mineral MFR Melt Flow Rate MSDS Material Safety Data Sheet MVR Melt Volume Rate PP Polypropylene SDS Safety Data Sheet 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW16606P-PP(MXX-GFYY) Where: PP Polypropylene GF
38、YY Glass Fiber content by mass MXX Mineral content by mass 9 Release and Revisions This standard was originated in May 2011. It was first approved by the Global Plastics GSSLT in June 2011. It was first published in June 2011. Issue Publication Date Description (Organization) 1 JUN 2011 Initial publication. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
