GB/T 17600.1-1998: Steel. Conversion of elongation values. Part 1: Carbon and low alloy steels

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Scope

This Standard specifies a method of converting room temperature elongations
after fracture obtained on various gauge lengths. It includes the conversion
formula and the conversion factor table of the elongation, as well as the graphs
for performing such conversions.
This Standard is applicable to carbon and low alloy steels within the tensile
strength range 300 to 700 MPa and in the hot-rolled, hot-rolled and normalized
or annealed conditions, with or without tempering.
This Standard is not applicable to cold rolled (drawn) steels, quenched and
tempered steels and austenitic steels.
This Standard is not applicable to the test piece of which the original gauge
length exceeds 25ඥ𝑆଴ or the test piece of which the width to thickness ratio
exceeds 20.
In the case of strip test piece under 4 mm thickness, the index n in formula (1)
of this Standard increases with decreasing thickness. The conversion value of
elongation shall be the subject of agreement between the customer and the
supplier.
The conversion method of this Standard is adopted internationally, and the
conversions are reliable within the scope of this Standard. However, because
of the various factors influencing the determination of elongations, whether to
use the conversions of this Standard shall be determined by the relevant
standards or agreements
In cases of dispute or arbitration, the elongation value shall be determined on
the gauge length stated in the relevant standards or agreements.

Basic Data

Standard ID	GB/T 17600.1-1998 (GB/T17600.1-1998)
Description (Translated English)	Steel. Conversion of elongation values. Part 1: Carbon and low alloy steels
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H22
Classification of International Standard	77.040.10
Word Count Estimation	18,134
Date of Issue	12/7/1998
Date of Implementation	7/1/1999
Older Standard (superseded by this standard)	YB 4080-1992
Adopted Standard	ISO 2566-1-1984, MOD
Issuing agency(ies)	State Quality and Technical Supervision
Summary	This standard specifies the ambient temperature gauge conversion method different elongation rates.