ISO 6947-2019 pdf free.Welding and allied processes一Welding positions. This document defines welding positions for testing and production, for butt and fillet welds, in all product forms. Annex A gives examples of the limits of the slope of a weld axis and the rotation of the weld face about the weld axis for welding positions in production welds. Annex B gives a comparison of this document and US designation systems for welding positions. 2 Normative references There are no normative references in this document. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso.orgJobp — IEC Electropedia: available at http://www.electropedia.org/ 4 Welding positions 4.1 Main welding positions The main welding positions PA to PG are illustrated in Figure 1. 4.2 Welding positions and allowable deviations for testing Welding positions used during welding of a test piece shall not exceed ±50 in slope and ±100 in rotation from the main welding position. 4.3 Welding positions and ranges in production The main welding positions are referenced in other standards, e.g. the ISO 9606 series for…

ISO 2553-2013 pdf free.Welding and allied processes – Symbolic representation on drawings – Welded joints. ISO 2553 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 standard 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 Interational Standard: — 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 NA” or B” are applicable to both systems. The symbols shown in this International Standard 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…