GB/T 31315-2014: Cold drawn or cold rolled precision weld steel tubes for mechanical structures

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Scope

This Standard specifies the classification, code, dimension, shape, weight and
tolerance, technical requirements, inspection and test methods, inspection
rules, packaging, marks and quality certificates of cold drawn or cold rolled
precision weld steel tubes for automotive and machinery.
This Standard is applicable to the cold drawn or cold rolled precision weld steel
tubes with special dimensional accuracy and high surface quality requirements
for machinery manufacturing, vehicle manufacturing, furniture and general
engineering industries.

Basic Data

Standard ID	GB/T 31315-2014 (GB/T31315-2014)
Description (Translated English)	Cold drawn or cold rolled precision weld steel tubes for mechanical structures
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H48
Classification of International Standard	77.140.75
Word Count Estimation	11,126
Date of Issue	12/5/2014
Date of Implementation	9/1/2015
Quoted Standard	GB/T 222; GB/T 223.5; GB/T 223.9; GB/T 223.11; GB/T 223.12; GB/T 223.14; GB/T 223.16; GB/T 223.18; GB/T 223.19; GB/T 223.23; GB/T 223.26; GB/T 223.32; GB/T 223.37; GB/T 223.40; GB/T 223.53; GB/T 223.59; GB/T 223.58; GB/T 223.60; GB/T 223.63; GB/T 223.64;
Regulation (derived from)	Announcement of Newly Approved National Standards 2014 No. 27
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
Summary	This Standard specifies the automotive and machinery classification drawn or cold rolled welded steel pipe, code, size, shape, weight and tolerances, technical requirements, testing and test methods, inspection rules, packaging, marking and quality certif