GB/T 6478-2001: Steels for cold heading and cold extruding

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Scope

This Standard specifies the classification, code number, size, appearance, weight,
allowable deviation, technical requirements, test methods, inspection rules, packaging,
marking and quality certificate of steels for cold heading and cold extruding.
This Standard is applicable to unalloyed and alloyed steel hot rolled wire rod with a
diameter of 5mm~40mm and intended for cold heading and cold extruding, as well as
the unalloyed and alloyed steel hot-rolled round steel with a diameter of
12mm~100mm and intended for cold heading and cold extruding.

Basic Data

Standard ID	GB/T 6478-2001 (GB/T6478-2001)
Description (Translated English)	Steels for cold heading and cold extruding
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H44
Classification of International Standard	77.140.10
Word Count Estimation	18,147
Date of Issue	2001-09-15
Date of Implementation	2002-02-01
Older Standard (superseded by this standard)	GB/T 6478-1986
Quoted Standard	GB/T 222-1984; GB/T 223.3-1988; GB/T 223.5-1997; GB/T 223.8-1991; GB/T 223.9-1989; GB 223.10-1991; GB/T 223.11-1991; GB/T 223.12-1991.GB/T 223.13-1989; GB/T 223.14-1989; GB/T 223.16-1991; GB/T 223.17-1989; GB/T 223.18-1994; GB/T 223.19-1989; GB/T 223.23 -1994; GB/T 223.24-1994; GB/T 223.26-1989; GB/T 223.53-1987; GB/T 223.58-1987; GB/T 223.59-1987; GB/T 223.60-1997; GB/T 223.61- 1988; GB/T 223.62-1988; GB/T 223.63-1988; GB/T 223.64-1988; GB/T 223.68-1997; GB/T 223.69-1997; GB/T 223.71-1997; GB/T 223.72-1991; GB/T 223.74-1997; GB/T 223.75-1991; GB/T 223.76-1991; GB/T 224-1987; GB/T 225-1988; GB/T 228-1987; GB/T 230-1991; GB/T 231-1984; GB/T 233-2000; GB/T 702-1986; GB/T 1979-1980; GB/T 2101-1989; GB/T 2975-1998; GB/T 4336-1984; GB/T 10561-1989; GB/T 14981-1994;
Adopted Standard	ISO 4954-1993; NEQ
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary	This standard specifies: cold heading and cold extrusion of steel classification, code, size, shape, weight and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality certification. This standard applies to: 5mm ~ 40mm- diameter cold heading and cold extrusion of non- alloy steel, alloy steel, hot-rolled strip and plate diameter 12mm ~ 100mm- cold heading and cold extrusion of non- alloy steel, alloy steel, hot-rolled round.