ASTM A897/A897M-16
Standard Specification for Austempered Ductile Iron Castings
- Standard No.
- ASTM A897/A897M-16
- Release Date
- 2016
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM A897/A897M-22
- Latest
- ASTM A897/A897M-22
- Scope
1.1 This specification covers ductile iron castings that are subsequently heat treated by an austempering process as defined in 9.1.
1.2 The application of the austempering heat treatment extends the range of properties achievable in ductile iron castings.
1.3 No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting or between the properties of castings and those of a test specimen cast from the same iron (see Appendix X1). However, austempering heat treatment will tend to diminish any differences in mechanical properties.
1.4 The production of castings, machining (if required), and the austempering heat treatments may be performed by different manufacturers, as covered in Section 13. The purchaser should establish by contract agreement, at the time of ordering, the responsibility of the various parties for meeting the specification requirements.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5.1 Exception—Within the text, the SI units are shown in brackets.
ASTM A897/A897M-16 Referenced Document
- ASTM A247 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
- ASTM A732/A732M Standard Specification for Castings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
- ASTM A834 Standard Specification for Common Requirements for Iron Castings for General Industrial Use
- ASTM E10 Standard Test Method for Brinell Hardness of Metallic Materials
- ASTM E23 Standard Test Methods for Notched Bar Impact Testing of Metallic Materials
- ASTM E8 Standard Test Methods for Tension Testing of Metallic Materials
ASTM A897/A897M-16 history
- 2022 ASTM A897/A897M-22 Standard Specification for Austempered Ductile Iron Castings
- 2016 ASTM A897/A897M-16 Standard Specification for Austempered Ductile Iron Castings
- 2015 ASTM A897/A897M-15 Standard Specification for Austempered Ductile Iron Castings
- 2006 ASTM A897/A897M-06(2011) Standard Specification for Austempered Ductile Iron Castings
- 2006 ASTM A897/A897M-06 Standard Specification for Austempered Ductile Iron Castings
- 2003 ASTM A897/A897M-03 Standard Specification for Austempered Ductile Iron Castings
- 2002 ASTM A897/A897M-02 Standard Specification for Austempered Ductile Iron Castings
- 1997 ASTM A897-90(1997) Standard Specification for Austempered Ductile Iron Castings (Withdrawn)
