AS/NZS ISO 636:2025 identically adopts ISO 636:2024 which specifies requirements for classification of rods, wires and deposits in the as-welded condition and in the post-weld heat-treated condition for tungsten inert gas welding of non-alloy and finegrain steels with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.1 General
4.2 Classification systems
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
5.3.1 System A – Classification by yield strength and 47 J impact energy
5.3.2 System B – Classification by tensile strength and 27 J impact energy
5.4 Symbol for the chemical composition of rods or wires
6 Mechanical tests
6.1 Mechanical tests and conditions
6.2 Preheating and interpass temperatures
6.3 Welding conditions and pass sequence
6.4 PWHT condition
7 Chemical analysis
8 Rounding procedure
9 Retesting
10 Technical delivery conditions
11 Designation examples
11.1 General
11.2 Example 1 – Classification by yield strength and 47 J impact energy – System A
11.3 Example 2 – Classification by tensile strength and 27 J impact energy – System B
11.4 Example 3 – Classification by yield strength and 47 J impact energy – System A
11.5 Example 4 – Classification by tensile strength and 27 J impact energy – System B
11.6 Example 4 – Classification by tensile strength and 27 J impact energy – System B
