ISO/TR 17671-4-2002 pdf download.Welding – Recommendations for welding of metallic materials一 Part 4: Arc welding of aluminium and aluminium alloys. This part of ISOITR 17671 gives general recommendations for the manual, mechanized and automatic fusion welding of wrought and cast aluminium alloys and combinations thereof. For general guidelines, see ISOITR 17671-1. In this part of ISOITR 17671 the word ‘pipe” alone, or in combinations, is used to mean tub& or hollow section, although these terms are often used by different industries for different categories of product. 2 References ISO 3834-2, Quality requirements for welding — Fusion welding of metallic materials — Part 2: Comprehensive quality requirements ISO 3834-3, Quality requirements for welding — Fusion welding of metallic materials — Part 3: Standards quality requirements ISO 4063:1998, Welding and allied processes — Nomenclature of processes and reference numbers. ISO 6520-1. Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 1: Fusion welding ISO 6947:1990, Welds — Working positions — Definitions of angles of slope and rotation ISO 9606-2, Approval testing of welders — Fusion welding — Part 2: Aluminium and aluminium alloys. ISO 9692-3, Welding and allied processes — Recommendations for joint preparation — Part 3:…

ISO 5817-2014 pdf free.Welding一Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded)一Quality levels for imperfections. ISO 5817 provides quality levels of imperfections in fusion-welded joints (except for beam welding) in all types of steel, nickel, titanium and their alloys. It applies to material thickness  0,5 mm. It covers fully penetrated butt welds and all fillet welds. Its principles can also be applied to partial-penetration butt welds. (Quality levels for beam welded joints in steel are presented In ISO 139 19-1.) Three quality levels are given in order to permit application to a wide range of welded fabrication. They are designated by symbols B, C and 0. Quality level B corresponds to the highest requirement on the finished weld. Several types of loads are considered, e.g. static load, thermal load, corrosion load, pressure load. Additional guidance on fatigue loads is given in Annex C. The quality levels refer to production and good workmanship. This International Standard is applicable to a) non-alloy and alloy steels, b) nickel and nickel alloys, c) titanium and titanium alloys, d) manual, mechanized and automatic welding, e) all welding positions. f) all types of welds. e.g. butt welds, fillet welds and branch connections,…