1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW15583 Acrylonitrile Styrene Acrylate Blends Copyright 2011 General Motors Company All Rights Reserved June 2011 Originating Department: North American Engineering Standards Page 1 of 5 1 Scope 1.1 Material Description. This specification des
2、cribes material types of unfilled acrylonitrile styrene acrylate (ASA) and polycarbonate (PC) blends, which are used in injection components. Code letters, in addition to GMW3013 guidelines that apply to this standard are listed below. Note: Additional characteristics will be indicated by code lette
3、rs according to the respective specification number. Code letters that may apply to this specification are defined in GMW3013. 1.1.1 Paintability. Approved paint systems that can be used on this material are listed in the GM Approved Paint on Parts Systems (GM APOPS) database. 1.1.2 Types. The class
4、ification into groups is according to the different properties as described in Tables 1, 2, and 3. 1.2 Symbols. The material abbreviation according to ISO 11469 are ASAASA+PC. 1.3 Typical Applications. Typical applications include exterior trim. 1.4 Remarks. Not applicable. 2 References Note: Only t
5、he latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ASTM D955 ISO 527-2 ASTM E831 ISO 1133 ISO 75-1 ISO 1183 ISO 75-2 ISO 2580-2 ISO 178 ISO 3167 ISO 179-1 ISO 11359-2 ISO 294 ISO 11469 ISO 294-3 SAE J1545 ISO-294-4 SAE J1976 ISO 306 SAE J25
6、27 ISO 527-1 2.2 GM Standards/Specifications. GMW3013 GMW14444 GMW3059 GMW14650 GMW3221 GMW14651 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements Note: Materials approved to this standard shall meet the requirements of GMW3013, General R
7、equirements for Handling of Technical Terms of Delivery for Plastics. Note: Requirements on Delivery. Important physical, mechanical and thermal properties that characterize the material are summarized in Tables 1 and 2. Note: For each product the requirements to Tables 1 and 2 shall be documented b
8、y Certification Statement according to GMW3013. The color shall be specified on drawings, in material specifications and otherwise. 3.1 Requirements on Test Specimens. Reference GMW3221. 3.1.1 Unless otherwise specified, injection molding of test specimens shall be accomplished per ISO 294 with the
9、conditions for injection molding from ISO 2580-2. 3.1.2 Test methods and specimen dimensions are to be in accordance with ISO 2580-2 with the following additions: use ISO 3167, Type 1A, thickness 4 mm, for tensile and flexural properties. 3.1.3 All tests shall be performed on specimen 40 h minimum a
10、fter molding and immediately following a conditioning period of 24 h minimum in a controlled atmosphere per GMW3221, Code A, unless otherwise specified. 3.1.4 All tests shall be performed on unannealed specimen. 3.1.5 The values specified in Table 1 shall be met by test specimen in natural or black.
11、 3.1.6 The values specified in Table 2 shall be met by integrally colored test specimen. 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 GMW
12、15583 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 2 of 5 3.1.7 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. 3.1.8 Chemical Requirements. All pa
13、rts manufactured from molding compounds shall be resistant to the media they contact at their place of use. 3.2 Compound Properties. For Compound Property requirements, natural, black and integrally colored, see Tables 1 and 2. The following are also required for full specification approval. 3.2.1 T
14、he minimum number of lots per test required is one in natural: Poissons Ratio, Stress Strain Curve at +23 C, +85 C, -30 C; Differential Scanning Calorimeter (DSC) Curve; Multiaxial Impact Curve, and Infrared Spectroscopy Curve. 3.2.2 See the styrenic certification template for the test procedures. 3
15、.3 Performance Requirements. 3.3.1 Performance requirements e.g., flammability, fogging or resistance to odor, shall be specified on part drawings or in component specifications. 3.3.2 All finished parts for Interior applications shall meet the requirements according to GMW14444 and GMW14651. This s
16、hall be noted on the Certification Statement with Code Letter U. 3.3.3 All finished parts for Exterior applications shall meet the requirements according to GMW14650. This shall be noted on the Certification Statement with Code Letter L. Table 1: Compound Property Requirements (Natural and Black) Pr
17、operty Standard Note 1 Units T1 T2 T3 T4 T5 Tensile Modulus ISO 527-1, ISO 527-2 MPa 1900 1900 2000 2000 2000 Tensile Strength Yield or Break ISO 527-1, ISO 527-2 MPa 35 40 35 45 45 Poissons Ratio ISO 527-1, ISO 527-2 No Units Report Report Report Report Report Tensile Strength after Heat Aging ISO
18、527-1, ISO 527-2 MPa Must be 75% retention of original values, age 1000 h at 80 C Tensile Strain at Break after Heat Aging ISO 527-1, ISO 527-2 % Must be 75% retention of original values, age 1000 h at 80 C Flexural Modulus ISO 178 MPa 1900 1900 2000 2000 2000 Charpy Notched Impact Strength +23 C IS
19、O 179-1eA kJ/m2 6 6 7 8 8 Charpy Notched Impact Strength -30 C ISO 179-1eA kJ/m2 2 2 2 2 5 Density ISO 1183/A g/cm3 1.08 0.03 1.09 0.03 1.08 0.03 1.15 0.03 1.16 0.03 Melt Flow Rate ISO 1133 cm3/10 minutes Report Report Report Report Report Mold Shrink - Flow Direction (Report for information only) I
20、SO 294-3, ISO 294-4 or ASTM D955 % 0.5 to 0.8 0.5 to 0.8 0.5 to 0.8 0.5 to 0.7 0.5 to 0.7 Mold Shrink Cross Flow Direction (Report for information only) ISO 294-3, ISO 294-4 or ASTM D955 % 0.5 to 0.8 0.5 to 0.8 0.5 to 0.8 0.5 to 0.7 0.5 to 0.7 HDT 0.45 MPa ISO 75-1, ISO 75-2 C 85 90 90 95 95 HDT 1.8
21、 MPa ISO 75-1, ISO 75-2 C 75 80 80 85 90 Vicat ISO 306 C 90 95 90 105 105 CLTE Flow Direction (Report for information only) ASTM E831 or ISO 11359-2 10-6 mm/(mm*K) 90 to 110 70 to 100 90 to 110 70 to 100 70 to 100 CLTE Cross Flow Direction (Report for information only) ASTM E831 or ISO 11359-2 10-6
22、mm/(mm*K) 90 to 110 70 to 100 90 to 110 70 to 100 70 to 100 Note 1: Standard test specimen and test setup should follow GMW3013. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-
23、,-GM WORLDWIDE ENGINEERING STANDARDS GMW15583 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 3 of 5 Table 2: Integrally Colored Property Requirements Property Standard Note1 Units T1 T2 T3 T4 T5 Charpy Notched Impact Strength +23 C ISO 179-1eA kJ/m2 6 6 6 7 7 Natural Weathe
24、r Resistance Note 2, 3 4 Color Change Surface Defects 5 years exposure to direct weather in Arizona per SAE J1976, Procedure A E Not required Not required 3.0 maximum No objectionable defects. Not required Not required Natural Weather Resistance Note 2, 3, 4 Color Change Surface Defects 2 years expo
25、sure to direct weather in Arizona per SAE J1976, Procedure A E3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. Accelerated Weather Resistance Note 2, 3, 4 Colo
26、r Change Surface Defects SAE J2527-A Extended UV Filters, 4500 kJ/m2 exposure to exterior Xenon Arc Weatherometer E Not required Not required 3.0 maximum No objectionable defects. Not required Not required Accelerated Weather Resistance Note 2, 3 4 Color Change Surface Defects SAE J2527-A Extended U
27、V Filters, 2500 kJ/m2 exposure to exterior Xenon Arc Weatherometer E3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. 3.0 maximum No objectionable defects. Note 1: Standard test specimen and test se
28、tup should follow GMW3013. Note 2: In case of conflict between accelerated weathering and natural weathering, natural weathering results take precedence. Note 3: For integrally colored compounds, the color of each test specimen shall be measured per SAE J1545, CIELAB color space, 10 degree observer,
29、 illuminant D65, specular included, sphere geometry, before and after exposures. In case of conflict between accelerated and natural weathering, natural weathering takes precedent. Prior to making measurements and observations on weathered specimens, wash the specimens with a solution consisting of
30、2 g No. 7 Car Wash Concentrate (distributed by Armor All Products, Aliso Viejo, CA 92656) and 1 L deionized water 22 3 C. Use a soft sponge saturated with the solution and scrubs the samples with a firm action. Note 4: Surface defect specific to gloss shall be evaluated with high initial gloss (80 t
31、o 90) shall have more than 50% retention in gloss, with medium initial gloss (30 to 50) shall have more than 60% retention, and lower gloss resins (below 30) shall have no more than a 10 unit change. Note 5: Temporary approval with accelerated weather resistance until getting results of natural weat
32、hering is permissible at discretion of approving engineer. Table 3: Properties Assigned to Type Property Type Standard ASA T1 High Heat ASA T2 High UV ASA T3 Low PC ASA+PC T4 High PC ASA+PC T5 4 Manufacturing Process Not applicable. 5 Rules and Regulations 5.1 Legal Regulations. All materials must s
33、atisfy applicable laws, 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 G
34、M material specification 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. Copyright General Motors Company Provided by IHS under license with General Motors C
35、ompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15583 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 4 of 5 A new approval must be received for any changes, e.g., properties, manufacturing proces
36、s, location of manufacture, 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
37、 of materials and/or processes 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 E
38、ngineering department and 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 Sa
39、fety Data Sheets/Safety 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 (GHS) of
40、Classification and Labeling of Chemicals 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
41、materials supplied to this 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 (i.e., GM Supply Power) u
42、nder this standard number have been qualified by engineering as meeting the requirements of this standard. For other GM locations, the responsible engineering group should be contacted to obtain the approved source in that individual country. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbre
43、viations, and Symbols. APOPS Approved Paint on Parts System ASA Acrylonitrile Styrene Acrylate CLTE Coefficient of Linear Thermal Expansion DSC Differential Scanning Calorimeter GHS Globally Harmonized System HDT Heat Deflection Temperature MSDS Material Safety Data Sheet No. Number PC Polycarbonate
44、 SDS Safety Data Sheet 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW15583P-ASA-T1Z or GMW15583P-ASA+PC-T4Z (Not Referenced). Where: GMW = GM Worldwide 15583 = Sequential number P = Plastics ASA = Acrylonitrile Styrene Acrylate ABS+
45、PC = Acrylonitrile Butadiene Styrene + Polycarbonate T1 = Type defined in Table 1 Z = Code(s) defined per GMW3013 9 Release and Revisions This standard was originated in April 2007. It was first approved by Global Plastics Team in October 2007. It was first published in March 2008. Issue Publication
46、 Date Description (Organization) 1 MAR 2008 Initial publication. 2 MAY 2008 Title change and Notched Charpy Impact value modified (Global Plastics Team) 3 JUN 2011 Modification for weathering and aging. (Global Plastics Team) Copyright General Motors Company Provided by IHS under license with Genera
47、l Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15583 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 5 of 5 Cross-Reference of Replaced Specification GMW15583P-ASA Type GMP.ASA.002, QK000226 T1 GMP.ASA.002, QK000234 T2 GMP.ASA.005 T3 GMW15583P-ASA+PC GMP.ASA+PC.001 T4 GMP.ASA+PC.004, QK002422 T5 Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
