ISO/TC 164/SC 1/WG 4 - Conventional quasi-static tensile test procedures

This document specifies a method of tensile testing of metallic materials at temperatures higher than room temperature.

This document provides specifications for testing miniaturised metallic test pieces where not enough material is available for test pieces according to ISO 6892-1. The guidelines in this document are not intended to replace the requirements of the standard method described in ISO 6892-1. This document refers to conventionally manufactured materials. NOTE 1 Additional information regarding testing of additively manufactured materials are given in ISO/ASTM 52909[5]. NOTE 2 Further information on the performance of miniaturised test pieces in tensile testing and the comparability of respective results is available in References [8] to [14].

This document specifies the method for tensile testing of metallic materials and defines the mechanical properties which can be determined at room temperature. NOTE Annex A contains further recommendations for computer controlled testing machines.

ISO 6892-4:2015 specifies the method of tensile testing of metallic materials in liquid helium (the boiling point is ?269 °C or 4,2 K, designated as 4 K) and defines the mechanical properties that can be determined. This part of ISO 6892 may apply also to tensile testing at cryogenic temperatures (less than ?196 °C or 77 K), which requires special apparatus, smaller test pieces, and concern for serrated yielding, adiabatic heating, and strain-rate effects. To conduct a tensile test according to this part of ISO 6892 at 4 K, the test piece installed in a cryostat is fully submerged in liquid helium (He) and tested using displacement control at a nominal strain rate of 10−3 s−1 or less. NOTE The boiling point of the rare 3He isotope is 3,2 K. Usually, the tests are performed in 4He or a mixture of 3He and 4He with a high concentration of 4He. Therefore, the temperature is, as designated before, 4 K.

ISO 6892-3:2015 specifies a method of tensile testing of metallic materials at temperatures between +10 °C and -196 °C.

ISO 6892-2:2018 specifies a method of tensile testing of metallic materials at temperatures higher than room temperature.

ISO 6892-1:2016 specifies the method for tensile testing of metallic materials and defines the mechanical properties which can be determined at room temperature. NOTE Annex A contains further recommendations for computer controlled testing machines.

ISO 6892-2:2011 specifies a method of tensile testing of metallic materials at temperatures higher than room temperature.

ISO 6892-1:2009 specifies the method for tensile testing of metallic materials and defines the mechanical properties which can be determined at room temperature.