ASTM E209-18 PDF

Full title and description

Standard Practice for Compression Tests of Metallic Materials at Elevated Temperatures with Conventional or Rapid Heating Rates and Strain Rates — a concise ASTM practice that specifies apparatus, specimen preparation, temperature control, strain-rate control, and measurement/recording procedures for axial compression tests of metals conducted at elevated and held temperatures.

Abstract

This practice covers compression tests in which specimens are heated to a uniform, constant elevated temperature and held while an axial force is applied at a controlled rate of strain. The standard defines machine and system qualification, temperature and strain measurement and control, acceptable specimen behavior (minimizing buckling and barreling), and preferred test conditions so results are comparable between laboratories.

General information

• Status: Active (current practice designated E209-18).
• Publication date: 1 February 2018 (designation E209-18, approved Feb 1, 2018; published March 2018).
• Publisher: ASTM International (Committee E28, Subcommittee E28.04 — Uniaxial Testing).
• ICS / categories: 77.040.10 — Mechanical testing of metals.
• Edition / version: E209-18 (revision of E209-00(2010)).
• Number of pages: 7 pages.

Scope

This practice establishes procedures for axial compression tests where specimens are heated to a constant, uniform elevated temperature and held while an axial load is applied at a controlled strain rate. It addresses machine requirements, specimen alignment and geometry to prevent buckling, temperature control and measurement, strain measurement and strain-rate control, and qualification of the complete compression-test system so data from different sources are comparable. The practice states values in inch-pound units as standard with SI conversions provided for information.

Key topics and requirements

• Specification of testing machine requirements and force verification (reference to Practice E4).
• Specimen heating to uniform, held elevated temperature; methods of heating are not prescriptively specified but temperature control/measurement procedures are detailed.
• Controlled axial strain-rate application and clear reporting of strain-rate during test.
• Strain measurement and extensometer/system verification (references to E83 and E6 for terminology and extensometer verification).
• Guidance to avoid buckling and barreling; recommendations for specimen geometry, alignment, and fixturing.
• System qualification and recorder/jig/strain-instrument calibration to ensure reproducible data between laboratories.
• Preferred test conditions so that results are comparable across laboratories and users.

Typical use and users

Used by materials testing laboratories, research institutions, metallurgical and mechanical engineers, quality-control and process-development teams (forging, rolling, high-temperature forming), and academic researchers requiring reliable compressive property data of metals at elevated temperatures.

Related standards

Commonly referenced ASTM standards and practices related to E209 include Practice E4 (force verification of testing machines), Terminology E6, Test Methods E9 (compression testing at room temperature), Test Methods E21 (elevated temperature tension tests), and Practice E83 (extensometer verification). E209-18 revises the prior E209-00(2010) edition.

Keywords

compression test, elevated temperature, strain rate, metallic materials, temperature control, strain measurement, buckling prevention, ASTM E209, high-temperature compression, testing machine qualification

FAQ

Q: What is this standard?

A: ASTM E209-18 is a practice that defines how to perform axial compression tests on metallic materials at elevated, held temperatures with controlled strain rates and provides requirements for equipment, temperature and strain measurement, and system qualification.

Q: What does it cover?

A: It covers specimen heating to a constant uniform temperature, controlled axial strain-rate compression loading, temperature and strain measurement and control, steps to minimize buckling/barreling, and qualification/calibration of the complete compression-test system so results are reproducible and comparable.

Q: Who typically uses it?

A: Materials test laboratories, metallurgists, mechanical engineers, manufacturers and process developers (e.g., forging/rolling), and academic researchers conducting high-temperature compressive property evaluations.

Q: Is it current or superseded?

A: The current published revision is E209-18 (approved Feb 1, 2018). It replaces earlier editions (e.g., E209-00(2010)). Users should confirm whether a newer revision exists before use.

Q: Is it part of a series?

A: It is part of ASTM Committee E28's uniaxial/mechanical testing suite of standards; it is linked with related test methods and practices (E4, E6, E9, E21, E83) that together cover force verification, terminology, room-temperature compression, elevated-temperature tension testing, and extensometer verification.

Q: What are the key keywords?

A: Compression testing, elevated temperature, strain rate, metallic materials, temperature control, ASTM E209, compression practice, machine qualification.