1、ABN 84 006 893 232 GM Holden Limited Engineering Department M ATERI AL SPECI FI CATI O N NUMBER SHEET RELEASE REVISION : HN 2132 1 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE
2、RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : S:EngBusProcessEngMaterialsMatlsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc 1. GENERAL The road wheel castings must conform to the requirements of AS 1638, except where shown by this specification. This
3、 specification covers the material requirements for a heat-treatable Aluminium Alloy suitable for road wheel application. The material is similar to the AS 1874/AC601 (formerly known as CP 601) and its equivalent. After the appropriate heat treatment and baking of the subsequent finish coating, the
4、final material properties of the road wheels must conform to the mechanical properties shown in this specification for: TYPE 1: Heat treatable Aluminium Alloy suitable for Cast road wheel application. TYPE 2: As above with increased elongation at the inboard rim. Type 2 is recommended for wheels tha
5、t require a high resistance to impact loads. TYPE 3: Cast and Flowformed Rims. Type 3 uses mechanical processing (Flow forming) of inner rim before heat treatment to enhance the mechanical properties. 2. CHEMICAL COMPOSITION The road wheel castings furnished to this specification should conform to l
6、imits shown in the table below. Element Type 1 and 2 Weight (%) Type 3 Weight (%) Si 6.5 7.5 6.5 - 7.5 Fe 0.20 Max. 0.20 Max Cu 0.05 Max. 0.05 Max Mn 0.05 Max. 0.05 Max Mg 0.35 Max. 0.30 - 0.40 Zn 0.05 Max. 0.05 Max Ti 0.20 Max. 0.20 Max Al Balance. Balance Other - Each 0.05 Max. 0.05 Max Other - To
7、tal 0.15 Max. 0.15 Max Mg levels greater than 0.35% can adversely affect the material ductility of Type 1 and 2 wheels. Copyright Holden Limited Provided by IHS under license with HOLDEN Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ABN 84 006 893 232 GM Holden L
8、imited Engineering Department M ATERI AL SPECI FI CATI O N NUMBER SHEET RELEASE REVISION : HN 2132 2 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CO
9、NFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : S:EngBusProcessEngMaterialsMatlsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc 3. HEAT TREATMENT 3.1 Recommended Initial Heat Treatment of Road Wheel Castings Solution heat treatment temperature 530 - 545 C Time at temperature 5 hours
10、Minimum. Precipitation heat treatment temperature 125 - 140 C Time at temperature Maximum time at temperature to ensure that the properties detailed in section 4.0 are achieved. If the supplier deviates from the recommended heat treatment conditions, it must be shown that the process will achieve th
11、e mechanical properties specified. 3.2 Paint Finish Bake Time and Temperature When a paint finish is applied to the road wheel castings, the paint bake temperature shall not exceed a time and temperature that will be detrimental to the recommended mechanical properties. The above heat treatment and
12、paint bake conditions are considered to provide satisfactory mechanical properties for the road wheel castings. However, where the road wheel castings have been supplied with a heat treatment or paint bake process other than recommended, the supplier must demonstrate to the Central Laboratory that t
13、he alloy wheels will conform to the recommended mechanical properties. Wheels may only be repainted if repainted wheels were included and passed the validation testing (as per GM TWS Validation Guidelines). The maximum number of times a wheel can be repainted is once. Copyright Holden Limited Provid
14、ed by IHS under license with HOLDEN Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ABN 84 006 893 232 GM Holden Limited Engineering Department M ATERI AL SPECI FI CATI O N NUMBER SHEET RELEASE REVISION : HN 2132 3 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE
15、ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : S:EngBusProcessEngMaterialsMatlsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc 4. MECH
16、ANICAL PROPERTIES 4.1 Finished Wheel Condition Requirements (after all painting cycles have been performed or simulated) Property TYPE 1 TYPE 2 TYPE 3 Inboard Rim Outboard Rim Inboard Rim Outboard Rim Inboard Rim Outboard Rim Tensile Strength 220 MPa Minimum As per section 4.1.1 As per section 4.1.1
17、 0.2% Proof Strength 195 MPa Minimum As per section 4.1.1 As per section 4.1.1 Elongation (over 50 mm) 5.0 % Minimum 8.0 % Minimum 8.0 % Minimum 8.0 % Minimum As per section 4.1.1 As per section 4.1.1 Indicative Hardness 64 87 HB As per section 4.1.1 Preferred ball diameter/indenting force is 10/100
18、0 kgf. 4.1.1 Determining Minimum Mechanical Property Requirements for Flow Formed Wheels. All mechanical property testing to determine Type 3 minimum mechanical properties is to be performed in a laboratory accredited to ISO/IEC 17025. Tensile tests should be performed according to ASTM B557M or ISO
19、 6892. Mechanical property tests are to be performed on all wheels used for supplier responsible validation tests (e.g. fatigue, impact and paint tests as per TWS Validation Guidelines). Tensile specimens are to be taken from areas of the wheel rims that do not exhibit any deformation from previous
20、testing. The results will be used to determine the minimum mechanical property production limits at the inboard and outboard rims (as specified in section 4.1). A minimum of 25 rims are to be tested that have only been painted once (no repaint allowed). If repainting is requested then an additional
21、14 rims are to be tested. If additional samples are required to meet this Copyright Holden Limited Provided by IHS under license with HOLDEN Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ABN 84 006 893 232 GM Holden Limited Engineering Department M ATERI AL SPECI
22、 FI CATI O N NUMBER SHEET RELEASE REVISION : HN 2132 4 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID.
23、FORM : S:EngBusProcessEngMaterialsMatlsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc minimum number then representative wheels from the same production batch may be used. Statistical analysis to determine mechanical property limits will be based on a Weibull distribution and 5% confiden
24、ce level (B5). Example: The figures below shows the Weibull distribution and cumulative Weibull Distribution of yield and UTS from a sample batch, the cumulative distribution shows that the B5 level for Yield in this example is 198MPa, and the B5 level for UTS is 280MPa. B5 limit (5% values likely t
25、o be below) B5 limit (5% values likely to be below) Copyright Holden Limited Provided by IHS under license with HOLDEN Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ABN 84 006 893 232 GM Holden Limited Engineering Department M ATERI AL SPECI FI CATI O N NUMBER SH
26、EET RELEASE REVISION : HN 2132 5 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : S:EngBusProcess
27、EngMaterialsMatlsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc 4. MECHANICAL PROPERTIES (continued) 4.2 Mechanical Properties Sample Location Preferred sample locations for Tensile test and Hardness test specimens at both the Outboard rim and Inboard rim are shown in below: Outboard rim
28、 samples are to be taken from the regions between the spokes where the design allows. 5. DEFECTS The road wheel castings furnished to this specification shall be free from harmful porosity, cracks, inclusions, or any other defects detrimental to machinability, performance or appearance. 6. ACCEPTANC
29、E LIMITS FOR INTERNAL POROSITY Refer to the castings standards for Aluminium Alloy road wheels HN 1814. 7. APPROVAL, INSPECTION AND REJECTION Refer HN 1000, Clauses A and C. Outboard Rim Sample Inboard Rim Sample Copyright Holden Limited Provided by IHS under license with HOLDEN Not for ResaleNo rep
30、roduction or networking permitted without license from IHS-,-,-ABN 84 006 893 232 GM Holden Limited Engineering Department M ATERI AL SPECI FI CATI O N NUMBER SHEET RELEASE REVISION : HN 2132 6 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT B
31、E REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : S:EngBusProcessEngMaterialsMatlsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc 8. RESTRICTED AND REPORTABLE SUBSTANCES (i) All substances and
32、parts must meet the requirements of GMW3059. (ii) All chemical components present in materials supplied to this specification must comply with Australian NICNAS (National Industrial Chemicals Notification and Assessment Scheme) obligations. 9. REFERENCES AS 1638 HN 1000 HN 1665 AS 1874/AC601 ASTM B5
33、57M ISO 6892 ISO / IEC 17025 GMW3059 Copyright Holden Limited Provided by IHS under license with HOLDEN Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ABN 84 006 893 232 GM Holden Limited Engineering Department M ATERI AL SPECI FI CATI O N NUMBER SHEET RELEASE REV
34、ISION : HN 2132 7 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : S:EngBusProcessEngMaterialsMat
35、lsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc 10. REVISIONS November, 1996 - Section 1.0 General revised to have all reference Australian Standards shown with the issuing year. - Section 2.0 revised to have the Al element added. - Section 3.0 “Heat Treatment” revised. - Section 4.0 re
36、vised to have the indicative hardness range “64 - 82 10/000 Kg” changed to “64 - 87 HB 10/1000 Kgf”. - Section 6.0 heading revised. - Section 7.0 heading revised. - Section 8.0 added. - Section 9.0 added. - The Material Safety Data Sheet requirements replaced by Section 8.0 Clause H. October, 1999 -
37、 The word “in accordance with AS 1638 1991” in the third paragraph of the Section 1 “General” removed. November 2002 - Section 1.0 Reference to Type 1 and Type 2 added, Replacement of under-age hardening properties with mechanical properties. - Section 2.0 Replaced shall with should and added note o
38、n Mg levels. - Section 3.2 Removal of 160C, reference to mechanical properties. - Section 4.0 Type 2 added to table, Yield Strength changed from Maximum to Minimum, hardness loads removed from table and added as preferred note. - Section 8 has been deleted. - Sections 9 and 10 have been renumbered 8
39、 and 9 respectively. April 2004 - Section 1.0(GENERAL), Note added about recommended applications for Type 2. - The contents of section 4(MECHANICAL PROPERTIES) in the previous version of HN 2132 has been included into section 4.1(Finished Wheel Condition Requirements). Changes made to this section
40、include - Type 1 Inboard Rim requirements added with 5% elongation. - Type 2 Inboard rim requirements changed to same as outboard rim. - “Yield strength” changed to “0.2% Proof strength”. - Added section 4.2 (Mechanical Properties Sample Location) to cover the location of specimens for mechanical pr
41、operties testing. 10. REVISIONS (continued) Copyright Holden Limited Provided by IHS under license with HOLDEN Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ABN 84 006 893 232 GM Holden Limited Engineering Department M ATERI AL SPECI FI CATI O N NUMBER SHEET RELE
42、ASE REVISION : HN 2132 8 of 8 October, 1993 June 2008 NAME: HEAT-TREATABLE ALUMINIUM ALLOY FOR ROAD WHEELS THIS DOCUMENT MUST NOT BE REPRODUCED. IF USED IN RELATION TO THE COMPANYS PRODUCTS THE RECIPIENT IS RESPONSIBLE TO CONFIRM THE DOCUMENT ISSUE DATE IS STILL VALID. FORM : S:EngBusProcessEngMater
43、ialsMatlsAndAppearanceNBRspecific0AdminMgmtStandardFormsMatspec.doc June 2008 - Section “1. GENERAL” - Added Type 3 and description - Section “2. CHEMICAL COMPOSITION” - Reformatted table to include other elements and added type 3 and type 3 specification. Also clarified 0.35Max Mg for type 1 and 2
44、wheels only. - Section “3. HEAT TREATMENT”, Section “3.2 Paint Finish Bake Time and Temperature” - Added “Time” to section title. - Added reference to repainted wheels. - Section “4. MECHANICAL PROPERTIES”, Section “4.1 Finished Wheel Condition Requirements” - Added reference to painting cycles - Ad
45、ded type 3 to table - Section “4. MECHANICAL PROPERTIES”, Section “4.1.1 Determining Minimum Mechanical Property Requirements for Flow Formed Wheels” - Added new section determining minimum mechanical requirements for Flow Formed Wheels. - Section “4. MECHANICAL PROPERTIES”, Section “4.2 Mechanical
46、Properties Sample Location” - Added clarifier to select samples from between the spokes where design allows. - Revised section “8.RESTRICTED AND REPORTABLE SUBSTANCES” to directly reference GMW3059 and NICNAS requirements. - Section “9 REFERENCES” - Added References to ASTM B557M, ISO 6892, and ISO / IEC 17025 Prepared by: G. Pattinson Copyright Holden Limited Provided by IHS under license with HOLDEN Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-
