ISO 2560-2020 pdf free.Welding consumables – Covered electrodes for manual metal arc welding of non-alloy and fine grain steels – Classification.
This document specifies requirements for the 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.
This document is a combined specification providing for classification utilizing a system based on the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based on the tensile strength and the average impact energy of 27 J of all-weld metal.
a) Clauses, subclauses and tables which carry the suffix letter “An are applicable only to covered electrodes classified to the system based on the yield strength and the average impact energy of 47 J of all weld metal in this document.
b) Clauses, subclauses and tables which carry the suffix letter “Ba are applicable only to covered electrodes classified to the system based on the tensile strength and the average impact energy of 27 J of all weld metal in this document.
c) Clauses, subclauses and tables which do not have either the suffix letter A or the suffix letter are applicable to all covered electrodes classified in this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
Iso 544, Welding consumables — Technical delivery conditions for filler materials and fluxes — Type of product, dimensions, tolerances and markings
ISO 2401, Covered electrodes — Determination of the efficiency, metal recovery and deposition coefficient
ISO 3690, Welding and allied processes — Determination of hydrogen content in arc weld metal
ISO 6847, Welding consumables — Deposition of a weld metal pad for chemical analysis
ISO 6947:2019, Welding and allied processes — Welding positions
ISO 14344, Welding consumables — Procurement offiller materials and fluxes
ISO 15792-1:2020, Welding consumables — Test methods — Part 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloys
ISO 15792-3:2011, Welding consumables — Test methods — Part 3: Classification testing of positional capacity and root penetration of welding consumables in a fillet weld
ISO 80000-1:2009, Quantities and units — Part 1: General. Corrected by ISO 80000-1:2009/Cur 1:2011
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4 Classification
Classification designations are based on two approaches to indicate the tensile properties and the impact properties of the all-weld metal obtained with a given electrode. The two designation approaches include additional designators for some other classification requirements, but not all. In most cases, a given commercial product can be classified in both systems. Then, either or both classification designations can be used for the product.
The classification includes all-weld metal properties obtained with a covered electrode as given below. The classification is based on an electrode size of 4,0 mm, with the exception of the symbol for welding position, which is based on ISO 15792-3. Where the defined diameter has not been manufactured, the closest diameter to 4,0 mm shall be used for all-weld metal tests.ISO 2560 pdf free download.