ISO 2566-1:2021
Steel — Conversion of elongation values — Part 1: Carbon and low-alloy steels
This document specifies a method of converting room temperature percentage elongations after fracture obtained on various proportional and non-proportional gauge lengths to other gauge lengths.
Formula (1), on which conversions are based, is considered to be reliable when applied to carbon, carbon manganese, molybdenum and chromium molybdenum steels within the tensile strength range 300 N/mm2 to 700 N/mm2 and in the hot-rolled, hot-rolled and normalized or annealed conditions, with or without tempering.
These conversions are not applicable to:
a) cold reduced steels;
b) quenched and tempered steels;
c) austenitic steels.
These conversions are not applicable when the gauge length exceeds or where the width to thickness ratio of the test piece exceeds 20.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Basic formula
5 Requirements on conversions
6 Conversion from one proportional gauge length to another proportional gauge length
7 Conversion from one non-proportional gauge length to another non-proportional gauge length for test pieces of equal cross-sectional area
8 Conversion from a non-proportional gauge length to another non-proportional gauge length for test pieces of different cross-sectional areas
9 Conversion from a proportional gauge length to a non-proportional gauge length
9.1 General
9.2 Conversion factors from to non-proportional gauge length
9.3 Conversion factors from to non-proportional gauge length
9.4 Elongation values
10 Use of Figures
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Basic formula
5 Requirements on conversions
6 Conversion from one proportional gauge length to another proportional gauge length
7 Conversion from one non-proportional gauge length to another non-proportional gauge length for test pieces of equal cross-sectional area
8 Conversion from a non-proportional gauge length to another non-proportional gauge length for test pieces of different cross-sectional areas
9 Conversion from a proportional gauge length to a non-proportional gauge length
9.1 General
9.2 Conversion factors from to non-proportional gauge length
9.3 Conversion factors from to non-proportional gauge length
9.4 Elongation values
10 Use of Figures
Bibliography