GB/T 1222-2016: Spring steels

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Scope

The Standard specifies the terms and definitions, order contents, dimension,
shape, weight, technical requirements, test methods, inspection rules,
packaging, marking and quality certificate of hot-rolled, forged and cold-drawn
spring steels.
The Standard is applicable to spring round steels and spring square steels with
a nominal diameter or a side length of not more than 120 mm (hereinafter
referred to as bars), spring flat steels with a nominal width of not more than 160
mm and a nominal thickness of not more than 60 mm, spring steel wire rods
with a nominal diameter of not more than 40 mm.
The grades and chemical composition specified in this Standard are also
applicable to steel ingots, billets and their products.

Basic Data

Standard ID	GB/T 1222-2016 (GB/T1222-2016)
Description (Translated English)	Spring steels
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H40
Classification of International Standard	77.140.25
Word Count Estimation	30,315
Date of Issue	2016-12-13
Date of Implementation	2017-09-01
Older Standard (superseded by this standard)	GB/T 1222-2007
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