ISO 2560:2009
Welding consumables — Covered electrodes for manual metal arc welding of non-alloy and fine grain steels — Classification
ISO 2560:2009 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 a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa.
ISO 2560:2009 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.
Paragraphs and tables which carry the suffix letter “A” are applicable only to covered electrodes classified to the system based upon the yield strength and the average impact energy of 47 J of all‑weld metal in ISO 2560:2009.
Paragraphs and tables which carry the suffix letter “B” are applicable only to covered electrodes classified to the system based upon the tensile strength and the average impact energy of 27 J of all‑weld metal in ISO 2560:2009.
Paragraphs and tables which do not have either the suffix letter “A” or the suffix letter “B” are applicable to all covered electrodes classified in ISO 2560:2009.
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Scope
Normative references
Classification
3A Classification by yield strength and 47 J impact energy
3B Classification by tensile strength and 27 J impact energy
Symbols and requirements
Symbol for the product/process
Symbols for strength and elongation of all-weld metal
Symbol for impact properties of all-weld metal
Symbol for the chemical composition of all-weld metal
Symbol for type of electrode covering
Symbol for condition of post-weld heat-treatment of all-weld
Symbol for nominal electrode efficiency and type of current
Symbol for welding position
Symbol for diffusible hydrogen content of deposited metal
Mechanical tests
Preheating and interpass temperatures
Pass sequence
Chemical analysis
Fillet weld test
Rounding procedure
Retests
Technical delivery conditions
Examples of designation
Previous versions
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Scope
Normative references
Classification
3A Classification by yield strength and 47 J impact energy
3B Classification by tensile strength and 27 J impact energy
Symbols and requirements
Symbol for the product/process
Symbols for strength and elongation of all-weld metal
Symbol for impact properties of all-weld metal
Symbol for the chemical composition of all-weld metal
Symbol for type of electrode covering
Symbol for condition of post-weld heat-treatment of all-weld
Symbol for nominal electrode efficiency and type of current
Symbol for welding position
Symbol for diffusible hydrogen content of deposited metal
Mechanical tests
Preheating and interpass temperatures
Pass sequence
Chemical analysis
Fillet weld test
Rounding procedure
Retests
Technical delivery conditions
Examples of designation