Welding 253 MA

1 December 2007 AvestaWeldingWelding wire TIGFor Welding steels such asOutokumpuENASTMBSNFSS153 MA 2372253 MA 2368 Standard designations Characteristics and Welding directions AVESTA 253 MA is designed for Welding thehigh temperature steel Outokumpu 253 MA,used for example in furnaces, combustionchambers, burners etc. Both the steel and theconsumable provide excellent properties attemperatures 850 1100 composition of the consumable is balanced to ensure crack resistant weld 253 MA has a tendency to give athick oxide layer during Welding and hot rolling. Black plates and previous weld beadsshould be carefully brushed or ground priorto gasAr ( ).

2 Gas flow rate 4 8 l/min. Chemical composition, wire(typical values, %) 9 FNDeLong2 FNWRC-92 MechanicalTypicalMin. valuespropertiesvalues (IIW)EN ISO 14343 Yield strength Rp0,2520 N/mm2 Tensile strength Rm720 N/mm2 Elongation A532 % Impact strength KV+20 C140 JHardness210 BrinellInterpass temperature:Max. 150 input:Max. treatment:Generally :Austenite with 3 10% temperature:Approx. 1150 C (air).Corrosion resistance:Excellent resistance tohigh temperature corrosion. Not intended forapplications exposed to wet 253 MAWelding dataDiameter, mmCurrent, AVoltage, 809 11010 13014 16016 20017 19