BS EN ISO 636:2015 pdf download – Welding consumables — Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels — Classification
This International Standard specifies requirements for classification of rods and wires in the as-welded condition and in the post-weld heat-treated condition for tungsten inert gas welding of non-alloy and fine-grain steels with a minimum yield strength of up to 500 MPa or a minimum tensilestrength of up to 570 MPa.
This International Standard is a combined specification providing classification utilizing a systembased upon the yield strength and the average impact energy of 47 ] of all-weld metal or utilizing asystem based upon the tensile strength and the average impact energy of 27 ] of all-weld metal.
a) Paragraphs and tables which carry the suffix letter “A” are applicable only to rods and wires
classified to the system based upon the yield strength and the average impact energy of 47 ] of all-weld metal in accordance with this International Standard.
b) Paragraphs and tables which carry the suffix letter “B” are applicable only to rods and wires classified to the system based upon the tensile strength and the average impact energy of 27 J ofall-weld metal in accordance with this International Standard.
Paragraphs and tables which have neither the suffix letter “A” nor the suffixletter”B” are applicableto all rods and wires classified in accordance with this International Standard.
The following documents, in whole or in part, are normatively referenced in this document and areindispensable for its application.For dated references,only the edition cited applies. For undatedreferences, the latest edition of the referenced document (inciuding any amendments) applies.
ISO 544,Welding consumables —Technical delivery conditions for filler materials and fluxes — Type ofproduct,dimensions,tolerances and markings
IS0 13916, Welding —Guidance on the measurement of preheating temperature, interpass temperatureand preheat maintenance temperature
IS0 14175,Welding consumables —Gases and gas mixtures for fusion welding and allied processesIS0 14344,Welding consumables — Procurement of filler materials and fluxes
IS0 15792-1:2000,Welding consumables —Test methods — Part 1: Test methods for all-weld metal testspecimens in steel, nickel and nickel alloys.Amended by ISO 15792-1:2000/Amd 1:2011
ISO 80000-1:2009,Quantities and units — Part 1:General.Corrected by ISo 80000-1:2009/Cor 1:2011
Classification designations are based upon two approaches to indicate the tensile properties and theimpact properties of the all-weld metal obtained with rods or wires. The two designation approachesinclude additional designators for some other classification requirements,but not all as will beclear from the following sections. In most cases, a given commercial product can be classified to the classification requirements in both systems. Then, either or both classification designations can be used for the product.
Rods or wires shall be classified according to their chemical composition in accordance with Table 3A or Table 3B.
4 Symbols and requirements
4.1 Symbol for the product/process
The symbol of weld deposit by the tungsten inert gas welding process shall be the letter “W” placed at the beginning of the designation.
The symbol of rods or wires for the tungsten inert gas welding shall be the letter “W” placed at the beginning of the rod or wire designation.BS EN ISO 636 pdf download.