AWS A5.9 ER307Si
ASME SFA 5.9 ER307Si
ER307Si is an austenitic stainless steel with added manganese and silicon compared to the AWS 307 grades. Used for joining and surfacing applications involving work-hardenable steels, armor plate, heat resistant
steels and subjected to temperatures up to 1560 F and dissimilar steels such as austenitic manganese steels to carbon steel forgings and castings. Weld deposits are porosity free, crack and corrosion resistant.
(Tri-mix gas = 90%He+7.5%Ar+2.5%CO2)
TYPICAL WIRE CHEMISTRY (%)