---
code: "ISO 6892-2"
title: "Metallic materials — Tensile testing — Method of test at elevated temperature"
institution: "ISO"
category: "material-testing"
revision: "2018"
scope: "Specifies axial tensile testing of metallic materials at temperatures above ambient (typically from about 35 °C to 1000 °C or higher) to determine tensile strength, proof strength, elongation, and reduction of area under controlled thermal conditions."
testMethod: "A heated specimen is elongated while force and extension are recorded; strain-rate Method A (preferred for repeatability) or stress-rate Method B may be used, analogous to ISO 6892-1 but with strict temperature uniformity requirements throughout the gauge section."
specimenRequirements: "Specimen geometry follows ISO 6892-1 families where applicable; thermocouple placement and allowable temperature gradients in the gauge length are defined. Gripping and alignment must limit bending; high-temperature extensometry (in-furnace or side-entry) is required for modulus and yield reporting."
url: "https://vectorbtc.com.tr/resources/standards/iso-6892-2/"
---

ISO 6892-2 extends the room-temperature framework of [ISO 6892-1](/resources/standards/iso-6892-1/) to elevated-temperature qualification. Laboratories use it when material specifications require proof of strength and ductility in hot service environments—for example power plant steels, aerospace alloys, and high-temperature fasteners.

Temperature control is the critical parameter: fluctuations across the gauge length must stay within narrow limits for the entire test. Vector universal testing machines paired with environmental chambers integrate furnace zoning, control loops, and high-temperature extensometers so strain-rate control (Method A) remains traceable.

Typical hardware includes a tensile frame, multi-zone furnace, temperature controller, and extensometry rated for the test window. For North American contracts that reference ASTM instead of ISO, see [ASTM E21](/resources/standards/astm-e21/), which addresses the same elevated-temperature tensile problem with ASTM reporting conventions.