1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW15572 Acrylonitrile Butadiene Styrene Copyright 2011 General Motors Company All Rights Reserved September 2011 Originating Department: North American Engineering Standards Page 1 of 5 1 Scope 1.1 Material Description. This standard describes
2、 material types of unfilled, heat stabilized, acrylonitrile butadiene styrene terpolymer, which are used in injection or blow molded components. 1.1.1 Additional Characteristics. Materials certified to this standard may have additional characteristics, e.g., paintable, elastomer modified, etc. Possi
3、ble additional characteristics are defined in GMW3013. 1.1.2 Types. The classification into groups is according to the different properties as described in Table 1, Table 2, and Table 3. 1.2 Symbols. The material abbreviation according to ISO 11469 is ABS. 1.3 Typical Applications. Typical applicati
4、ons include mold in color, painted, or chrome plated interior trim and painted or chrome plated exterior trim. 1.4 Remarks. Not applicable. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ASTM D955 ISO 527-1/2 AS
5、TM D3763 ISO 1133 ASTM E831 ISO 1183 ISO 75-1/2 ISO 2580-2 ISO 178 ISO 3167 ISO 179/1eA ISO 3795 ISO 294 ISO 6603 ISO 294-3/4 ISO 11359-2 ISO 306 ISO 11469 ISO 527 SAE J1885 2.2 GM Standards/Specifications. GMW3013 GMW14162 GMW3059 GMW14334 GMW3205 GMW14444 GMW3221 GMW14650 GMW3232 GMW14651 GMW3235
6、GMW14668 GMW3417 GMW16193 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements 3.1 Materials approved to this standard shall meet the requirements of GMW3013, General Requirements for Handling of Technical Terms of Delivery for Plastics. 3.2
7、 Requirements on Delivery. Important physical, mechanical and thermal properties that characterize the material are summarized in Table 1 and Table 2. Note: For each product, the requirements to Table 1 and Table 2 shall be documented by Certification Statement according to GMW3013. The color shall
8、be specified on drawings, in material specifications and otherwise. 3.3 Requirements on Test Specimens. Unless otherwise specified, injection molding of test specimens shall be accomplished per ISO 294 with the conditions for injection molding from ISO 2580-2. Test methods and specimen dimensions ar
9、e also 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. All tests shall be performed on specimens 40 h minimum after molding and immediately following a conditioning period of 24 h minimum in a controlled atm
10、osphere per GMW3221, Code A, unless otherwise specified. All tests shall be performed on unannealed specimens. The values specified in Table 1 shall be met by test specimens in natural or black; the values specified in Table 2 shall be met by integrally colored test specimens. For integrally colored
11、 grades where other additive systems (e.g., stabilizer) are used, the impact values shall not decrease more than 10% from the specified minimum value. 3.3.1 Chemical Requirements. All parts manufactured from molding compounds shall be resistant to the media they contact at their place of use. Copyri
12、ght 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 GMW15572 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 2 of 5 3.4
13、Compound Properties. See Table 1 and Table 2. The following are also required for full standard approval. x The minimum number of lots per test required is one in natural. x Stress Strain Curve at multiple temperatures for example: 23 C, 85 C, and 30 C. 3.5 Performance Requirements. Performance requ
14、irements, e.g., flammability, fogging or resistance to odor, shall be specified on part drawings or in component standards. All finished parts for Interior applications shall meet the requirements according to GMW14444 and GMW14651. All finished parts for Exterior applications shall meet the require
15、ments according to GMW14650. 3.6 Compound Properties. See Table 1 and Table 2.Table 1: Compound Properties (Natural and Black) Property Standard Note 1 Units T1 T2 T3 T4 T5 T6 T7 T8 Density ISO 1183/A g/cm3 1.05 0.03 1.05 0.03 1.07 0.04 1.07 0.03 1.05 0.03 1.05 0.03 1.05 0.03 1.05 0.03 Mold Shrink (
16、report one lot) ISO 294-3/4 or ASTM D955 % 0.6 - reported in specification as nominal target, actual shrink dependent upon wall thickness, flow distance, etc. - exact shrink should be determined on a tool by tool basis. Coefficient of Linear Thermal Expansion (CLTE) ASTM E831 or ISO 11359-2 1/K 90 x
17、 10-6 - target value - report one lot in flow and one lot cross flow directions. Tensile Yield ISO 527-1/2 MPa 30 35 40 40 30 45 30 30 Tensile Modulus ISO 527-1/2 MPa 1700 1900 2200 1900 1800 2200 2000 1500 Tensile Strain at Break ISO 527-1/2 % Report Report Report Report Report Report Report Report
18、 Poissons Ratio (one lot) ISO 527-1/2 MPa Report Report Report Report Report Report Report Report Flexural Modulus ISO 178 MPa 1700 1900 2200 1800 1800 2200 2000 1800 Notched Charpy at +22 C ISO 179/1eA kJ/m2 8 8 10 20 8 8 8 15 Notched Charpy at -30 C ISO 179/1eA kJ/m2 4 4 6 8 4 4 4 10 Multiaxial Im
19、pact at +22 C (target value report one lot) ASTM D3763, specimen C, 6.6 m/s impact velocity OR ISO 6603-2/40/20/C/4.4. Sample to be either square 60 mm x 60 mm minimum, or circle 60 mm diameter minimum. Sample thickness to be 2 0.1 mm J at maximum force Report Copyright General Motors Company Provid
20、ed by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15572 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 3 of 5 Property Standard Note 1 Units T1 T2
21、T3 T4 T5 T6 T7 T8 Vicat Softening Temperature ISO 306 C 88 92 105 100 90 100 90 100 Heat Deflection Temperature (HDT) B - 0.45 MPa ISO 75-1/2 C 80 90 100 100 80 90 80 90 HDT A - 1.8 MPa ISO 75-1/2 C 70 80 90 90 70 80 70 80 Melt Mass -Flow Rate or Melt Volume Flow Rate ISO 1133 (220 C/10 kg) g/10 min
22、utes or cm3/10 minutes Report Report Report Report Report Report Report Report Odor GMW3205, Code B, Specimen 100 mm x 150 mm x 3.2 mm NA Rating 6 Chemical Resistance GMW14334-A No units Rating 1 Tensile Strength after Heat Aging ISO 527 MPa Must be 75% retention of original values, age 1000 h at 80
23、 C. Tensile Strain at Break after Heat Aging ISO 527 % Report - target 75% retention of original values, age 1000 h at 80 C. Fogging GMW3235-B-condensable constituents mg 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 Chrome Plated Properties See table Not applicable Not applicable Not applicable Not applicable No
24、t applicable See Note 2See Note 2Not applicable Not applicable Note 1: Standard test specimen and test setup should follow GMW3013. Note 2: Chrome plating grades shall be tested at two different platers through all necessary requirements of GMW14668 Code A, Type 1, and GMW16193. General Motors Mater
25、ials Engineering shall review test results for approval. Part selection shall be agreed upon with General Motors Materials Engineering for plating testing - parts selected shall be significant size (such as fascia grille) to show robustness through environmental cycling. Table 2: Compound Properties
26、 (Integrally Colored) Property Standard Note 1 Units T1 T2 T3 T4 T5 T6 T7 T8 Notched Charpy at +22 C ISO 179/1eA kJ/m2 7 7 7 15 7 7 7 7 Colorfastness to Light, Natural Weathering GMW3417-L1-F2-G1-25 000 TNR langleys at +85 C Delta E 3.0 No objectionable defects allowed. Copyright General Motors Comp
27、any Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15572 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 4 of 5 Property Standard Note 1 Un
28、its T1 T2 T3 T4 T5 T6 T7 T8 Colorfastness to Light, Accelerated SAE J1885, 263 kJ/m2 or GMW14162/B/14 MJ/m Delta E 3.0 No objectionable defects allowed. or Rating 4 minimum (also, there shall be no more than a noticeable change in hue or chroma, and no objectionable tackiness, blotchiness, loss of g
29、rain, wrinkling, or other undesirable effects). Flammability GMW3232 or ISO 3795 (Report values according to GMW3232) mm/ minimum 100 mm/ minimum 100 mm/ minimum 100 mm/ minimum 100 mm/ minimum 100 mm/ minimum 100 mm/ minimum 100 mm/ minimum 100 mm/ minimum Note 1: Standard test specimen and test se
30、tup should follow GMW3013. Table 3: Properties Assigned to Type Property Type General Grade T1 Medium Heat T2 High Heat T3 High Heat, High Impact T4 Chrome Plateable T5 High Heat Chrome Plateable T6 Blow Molding Interior T7 Blow Molding Exterior T8 4 Manufacturing Process Not applicable. 5 Rules and
31、 Regulations 5.1 Legal Regulations. All materials must satisfy 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 Rejec
32、tion. Samples of components or materials released to a GM 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. A new approval must be recei
33、ved for any changes, e.g., properties, manufacturing process, 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 soli
34、citation, and to include documentation of all modifications 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
35、, a shorter test can be agreed to between the responsible Engineering 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 meet
36、ing the requirements of this specification. 5.5 Material Safety 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
37、in compliance with the Globally Harmonized System of Classification and Labeling of 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/Saf
38、ety Data Sheet guidance documents where available. 5.6 All 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 source
39、s listed in the GM Materials File (MATSPC) under this standard number have been qualified by Engineering as meeting the requirements of this standard. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted witho
40、ut license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15572 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 5 of 5 For other GM locations, the responsible Engineering group should be contacted to obtain the approved source in that individual country. 7 Notes 7.1
41、 Glossary. MATSPC: Global repository of GM approved materials for corresponding GM Engineering Standards. 7.2 Acronyms, Abbreviations, and Symbols. ABS Acrylonitrile Butadiene Styrene CLTE Coefficient of Linear Thermal Expansion GHS Globally Harmonized System HDT Heat Deflection Temperature MSDS Mat
42、erial Safety Data Sheet SDS Safety Data Sheet TNR Total Normalized Radiation 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW15572P-ABS-T1 Where: GMW = GM Worldwide 15572 = Sequential number P = Plastics ABS = Acrylonitrile Butadiene
43、Styrene T1 = Type defined in Table 1 9 Release and Revisions This standard was originated in March, 2007. It was first approved by the Global Plastics Team in July 2007. It was first published in February 2008. Issue Publication Date Description (Organization) 1 FEB 2008 Initial publication. 2 SEP 2
44、010 Updated values to better fit materials. (Global Plastics Sub System Leadership Team) 3 SEP 2011 Add chrome plate callouts and put T4 back in. (Global Plastics Leadership Team) Cross Reference of Replaced Material Coding GMW15572 Material Codes Formerly Identified As T1 EDS-M-4305-21, GMP.ABS.001
45、, GMP.ABS.002, GMP.ABS.004, HN1259-1C, QK002011 T2 EDS-M-4301-21, GMP.ABS.003, HN1259-2B, QK002012 T3 EDS-M-4301-21, EDS-M-4301-31, GMP.ABS.009, GMP.ABS.014, HN1259-1, QK002013 T4 QK002014 T5 EDS-M-4304-1, GMP.ABS.007, HN 1259-4A, QK002031 T6 QK002032 T7 EDS-M-4315-11, GMP.ABS.023 T8 GMP.ABS.025 Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
