GB/T 19418-2003: Arc-welded joints in steel -- Guidance on quality levels for imperfections

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Scope

This Standard provides guidance on levels of imperfections in arc-welded joints
in steel. The levels refer to production quality and not to the fitness-for-purpose
(see 3.1) of the product manufactured.
This Standard applies to
- the following welding processes and their defined sub-processes in
accordance with GB/T 5185.
11 metal-arc welding without gas protection;
12 submerged-arc welding;
13 gas-shielded metal-arc welding;
14 gas-shielded welding with non-consumable electrode;
15 plasma arc welding;
- manual, mechanized and automatic processes;
- all welding positions;
- butt welds, fillet welds and branch connections;
- materials in the thickness range 3 mm to 63 mm.
Metallurgical aspects, e.g. grain size, hardness, are not covered by this
Standard.

Basic Data

Standard ID	GB/T 19418-2003 (GB/T19418-2003)
Description (Translated English)	Arc-welded joints in steel-Guidance on quality levels for imperfections
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J33
Classification of International Standard	25.160.50
Word Count Estimation	9,913
Date of Issue	2003-11-28
Date of Implementation	2004-06-01
Adopted Standard	ISO 5817-1992; IDT
Regulation (derived from)	Chinese national standard approved by the announcement in 2004 No. 1 (No. 63 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary	This standard specifies: steel welding joints defects quality level. These grades and products and its applicability (see 3. 1) is independent manufacturing quality related.