DS/ISO 2553:2019

Welding and allied processes – Symbolic representation on drawings – Welded joints


Status:
Current
Type:
Standard
Language:
EN
Price from:
€ 104.53

Scope

This document defines the rules to be applied for symbolic representation of welded joints on technical
drawings. This may include information about the geometry, manufacture, quality and testing of the
welds. The principles of this document may also be applied to soldered and brazed joints.
It is recognized that there are two different approaches in the global market to designate the arrow side
and other side on drawings. In this document:
– clauses, tables and figures which carry the suffix letter "A" are applicable only to the symbolic
representation system based on a dual reference line;
– clauses, tables and figures which carry the suffix letter "B" are applicable only to the symbolic
representation system based on a single reference line;
– clauses, tables and figures which do not have the suffix letter "A" or "B" are applicable to both
systems.
The symbols shown in this document may be combined with other symbols used on technical drawings,
for example to show surface finish requirements.
An alternative designation method is presented which may be used to represent welded joints on
drawings by specifying essential design information such as weld dimensions, quality level, etc. The joint
preparation and welding process(es) are then determined by the production unit in order to meet the
specified requirements.
NOTE – Examples given in this document, including dimensions, are illustrative only and are intended to
demonstrate the proper application of principles. They are not intended to represent good design practices, or to
replace code or specification requirements.

Number of pages: 64

Published: 2019-04-30

Date of approval: 2019-04-23

International relationships: ISO 2553:2019 IDT

ICS: 01.100.20 - Mechanical engineering drawings 25.160.40 - Welded joints and welds

Item number: M330263


Committees

Committee

  • ISO/TC 44/SC 7
  • ISO/TC 44/SC 7/WG 1

Danish committee

DS/S-047