GB/T 702-2017: Hot-rolled steel bars - Dimensions, shape, weight and tolerances

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Scope

This Standard specifies the cross-sectional shape, cross-sectional dimensions, weight
and tolerances, length and tolerances, appearance, etc. of hot-rolled steel bars (round
steels, square steels, flat steels, hexagonal steels, octagonal steels).
This Standard applies to hot-rolled round steels with the diameter of 5.5 mm ~ 380 mm
and hot-rolled square steels with the side length of 5.5 mm ~ 300 mm; hot-rolled flat
steels for general purposes with the thickness of 3 mm ~ 60 mm and the width of 10
mm ~ 200 mm; hot-rolled tool flat steels with the thickness of 4 mm ~ 100 mm and the
width of 10 mm ~ 310 mm (hot-rolled flat steels and hot-rolled tool flat steels for general
purposes are generally referred to as hot-rolled flat steels); hot-rolled hexagonal steels
with the distance across flats of 8 mm ~ 70 mm and hot-rolled octagonal steels with
the distance across flats of 16 mm ~ 40 mm.

Basic Data

Standard ID	GB/T 702-2017 (GB/T702-2017)
Description (Translated English)	Hot-rolled steel bars - Dimensions, shape, weight and tolerances
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H44
Classification of International Standard	77.140.60
Word Count Estimation	18,167
Date of Issue	2017-09-29
Date of Implementation	2018-06-01
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China