BS EN ISO 6847 pdf free download
BS EN ISO 6847-2020 pdf free download.Welding consumables – Deposition of a weld metal pad for chemical analysis.
This document specifies the procedure to be used for deposition of a weld metal pad for chemical analysis.
This document applies to deposition of a weld metal pad by use of covered electrodes, wire electrodes for gas shielded metal arc welding, tubular cored electrodes for gas shielded metal arc welding and for non-gas shielded metal arc welding, solid rods and tubular cored rods for gas tungsten arc welding, and wire-flux and strip-flux combinations for submerged arc welding or electroslag welding and cladding.
This document is applicable to welding consumables for non-alloy and fine grain steels, high strength steels, creep-resisting steels, stainless and heat-resisting steels, nickel and nickel alloys, and copper and copper alloys.
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 6947, Welding and allied processes — Welding positions
ISO 14175, Welding consumables — Gases and gas mixtures for fusion welding and allied processes
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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/
3.1 alloying flux
flux designed to modify the chemical composition of the weld using metals other than, or in addition to, manganese and silicon
4 Base metal
4.1 Type
The base metal (except for cladding) shall have a composition similar to that of the deposited metal or be a weldable carbon manganese structural steel with a carbon content of less than 0,2 %.
The base metal for cladding combinations shall be a weldable carbon manganese structural steel with a carbon content of less than 0,15 %, and with each of the following elements present at less than 0,10 % by weight: Cr, Mo, Nb, Ni.
4.2 Dimensions
The minimum dimensions of the base metal are given in Table 1.
4.3 Surface condition
The surface of the base metal on to which the weld metal is to be deposited shall be cleaned by grinding or other means in order to remove any rust, scale, grease, or paint.BS EN ISO 6847 pdf free download.
