Standard No.:	GB/T 702-2017
English Name:	Hot-rolled steel bars - Dimensions, shape, weight and tolerances
Chinese Name:	热轧钢棒尺寸、外形、重量及允许偏差
Chinese Classification:	H44    Profile steel and deformed steel
Professional Classification:	GB    National Standard
ICS Classification:	77.140.60 77.140.60    Steel bars and rods 77.140.60
Issued by:	AQSIQ AND SAC
Issued on:	2017-09-29
Implemented on:	2018-6-1
Status:	valid
Superseding:	GB/T 702-2008 Hot-rolled Steel Bars - Dimensions, Shape, Weight and Tolerances
Language:	English
File Format:	PDF
Word Count:	8500 words
Price(USD):	140.0
Delivery:	via email in 1 business day

1 Scope This standard specifies section shape, sectional dimension, weight and tolerances, length and tolerances, shape, etc. of hot-rolled steel bars (round steel, square steel, flat steel, hexagonal steel and octagonal steel). This standard is applicable to hot-rolled round steel with the diameter of 5.5mm~380mm, hot-rolled square steel with side length of 5.5mm~300mm, hot-rolled flat steel for general purpose with thickness of 3mm~60mm and width of 10mm~200mm, hot-rolled flat tool steel (the hot-rolled flat steel for general purpose and flat tool steel are hereinafter referred to as hot-rolled flat steel) with the thickness of 4mm~100mm and the width of 10mm~310mm, hot-rolled hexagonal steel with the opposite side distance of 8mm~70mm and hot-rolled octagonal steel with the opposite side distance of 16mm~40mm. 2 Section Shape 2.1 See Figure 1 for the section shape of hot-rolled round and square steels.

Foreword i 1 Scope 2 Section Shape 3 Sectional Dimension, Weight and Tolerances 4 Length and Tolerance 5 Shape Annex A (Normative) Dimension and Theoretical Weight of Hot-rolled Steel Bars