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BS EN ISO 2560:2009 Welding consumables. Covered electrodes for manual metal arc welding of non-alloy and fine grain steels. Classification.
BS EN ISO 2560 specifies requirements for classification of covered electrodes, and deposited metal in the as-welded condition, and in the post-weld heat-treated condition for manual metal arc welding of non-alloy ,and fine grain steels with minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa.
BS EN ISO 2560 is a combined specification providing for 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.
Contents of BS EN ISO 2560:
Foreword
Introduction
1 Scope
2 Normative references
3 Classification
4 Symbols & requirements
4.1 Symbol for the product/process
4.2 Symbols for strength and elongation of all-weld metal
4.3 Symbol for impact properties of all-weld metal
4.4 Symbol for the chemical composition of all-weld metal
4.5 Symbol for type of electrode covering
4.6 Symbol for condition of post-weld heat-treatment of all-weld metal.
4.7 Symbol for nominal electrode efficiency, and type of current
4.8 Symbol for welding position
4.9 Symbol for diffusible hydrogen content of deposited metal
5 Mechanical tests
5.1 Preheating and interpass temperatures
5.2 Pass sequence
6 Chemical analysis
7 Fillet weld test
8 Rounding procedure
9 Retests
10 Technical delivery conditions
11 Examples of designation
Annex A (informative) Classification systems
Annex B (informative) Description of types of electrode covering — Classification by yield strength and 47 J impact energy
Annex C (informative) Description of types of electrode covering — Classification by tensile strength and 27 J impact energy
Annex D (informative) Notes on diffusible hydrogen and the avoidance of cold cracking
Bibliography.