1 Scope
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/mm 2 to 700 N/mm 2 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
25
S
0
or where the width to thickness ratio of the test piece exceeds 20.
BS EN ISO 2566-1:2021 history
0000 BS EN ISO 2566-1:2021(2022)
2022BS EN ISO 2566-1:2021 Steel. Conversion of elongation values - Carbon and low-alloy steels
1999BS EN ISO 2566-1:1999 Steel - Conversion of elongation values - Carbon and low alloy steels