BS EN ISO 21952:2012 pdf free.Welding consumables – Wire electrodes, wires, rods and deposits for gas shielded arc welding of creep-resisting steels – Classification (ISO 21952:2012).
BS EN ISO 21952 specifies requirements for classification of wire electrodes, wires and rods for gas shielded metal arc welding and tungsten inert-gas welding of creep-resisting steels, and for their deposits in the as-welded or post-weld heat-treated condition. One wire electrode can be tested and classified with different shielding gases.
This International Standard is a combined specification providing for classification utilizing a system based upon the chemical composition of wire electrodes, wires and rods with requirements for yield strength and average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength of the all-weld metal deposits and the chemical composition of wire electrodes, wires and rods.
a) Clauses. subclauses and tables which carry the suffix letter “K are applicable only to wire electrodes, wires, rods and deposits classified in accordance with the system based upon the chemical composition with requirements for yield strength and the average impact energy of 47 J of all-weld metal deposits under this International Standard.
b) Clauses, subclauses and tables which carry the suffix letter “B” are applicable only to wire electrodes, wires, rods and deposits classified in accordance with the system based upon the tensile strength of all-weld metal deposits and the chemical composition of wire electrodes, wires and rods under this International Standard.
c) Clauses, subclauses and tables which do not have either the suffix letter “A or the suffix letter ‘B” are applicable to all wire electrodes, wires, rods and deposits classified under this International Standard.
2 Normative references
The following referenced documents are indispensable for the application 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 13916, Welding — Guidance on the measurement of preheating temperature. interpass temperature and preheat maintenance temperature
ISO 14175:2008, Welding consumables — Gases and gas mixtures for fusion welding and allied processes ISO 14344, Welding consumables — Procurement of filler materials and fluxes
ISO 15792-1, Welding consumables — Test methods — Pail 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloys.BS EN ISO 21952 pdf download.
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