ISO 636:2017
Welding consumables — Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels — Classification
ISO 636:2017 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 tensile strength of up to 570 MPa.
ISO 636:2017 is a combined specification providing classification utilizing a system based upon the yield strength and the average impact energy of 47 J of all-weld metal or utilizing a system based upon the tensile strength and the average impact energy of 27 J 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 J of all-weld metal in accordance with this document.
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 of all-weld metal in accordance with this document.
c) Paragraphs and tables which have neither the suffix letter "A" nor the suffix letter "B" are applicable to all rods and wires classified in accordance with this document.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.1 General
5 Symbols and requirements
5.1 Symbol for the product/process
5.2 Symbol for strength and elongation of all-weld metal
5.3 Symbol for impact properties of all-weld metal
5.4 Symbol for the chemical composition of rods or wires
6 Mechanical tests
6.1 Preheating and interpass temperatures
6.2 Welding conditions and pass sequence
6.3 PWHT condition
7 Chemical analysis
8 Rounding procedure
9 Retesting
10 Technical delivery conditions
11 Examples of designation
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.1 General
5 Symbols and requirements
5.1 Symbol for the product/process
5.2 Symbol for strength and elongation of all-weld metal
5.3 Symbol for impact properties of all-weld metal
5.4 Symbol for the chemical composition of rods or wires
6 Mechanical tests
6.1 Preheating and interpass temperatures
6.2 Welding conditions and pass sequence
6.3 PWHT condition
7 Chemical analysis
8 Rounding procedure
9 Retesting
10 Technical delivery conditions
11 Examples of designation
Bibliography