ASTM E139
Full Name
ASTM E139 – Standard Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials
Scope
ASTM E139 provides standardized procedures for determining the long-term behavior of metallic materials under constant load and elevated temperature conditions. This standard encompasses creep, creep-rupture, and stress-rupture tests, which are crucial for evaluating material suitability in high-temperature applications.
Key aspects of ASTM E139 include:
- Test types: defines creep, creep-rupture, and stress-rupture tests and their objectives.
- Specimen preparation: outlines requirements for specimen geometry and dimensions.
- Test equipment: specifies loading frames, furnaces, and measurement devices.
- Test procedure: details loading conditions, temperature control, and data acquisition.
- Data analysis: provides methods for calculating creep strain, time to rupture, and rupture life.
By following ASTM E139, engineers and designers can accurately assess the long-term performance of metallic materials, ensuring component reliability and safety in demanding environments.
Resources
Keywords
creep; creep-rupture; stress-rupture; metallic materials; elevated temperature; long-term behavior; specimen preparation; test equipment; loading frame; furnace; data acquisition; creep strain; time to rupture; rupture life; data analysis; material suitability; product development; life prediction