GM 312, ER 312
AWS/SFA 5.9 ER312 BS2901-90 312S94,
DIN 8556-86 WSGX10CrNi 30.9
GM 312 is a solid stainless steel wire which deposits a 29 % Cr / 9 % Ni austenitic / ferritic stainless steel weld metal with a ferrite content of about 40 FN. The weld metal exhibits excellent tolerance to dilution from dissimilar and difficult-to-weld base material without hot cracking, together with high strength and very good heat and oxidation resistance. Not recommended for depositing welds to be PWHT.
CHEMICAL ANALYSIS (RANGE) %
MECHANICAL PROPERTIES (RANGE)
SHIELDING GAS : Ar + 2% O2 , 16 - 21 l/min
WELDING CURRENT : DC ( - )
Good resistance to sulphurous gases at high temperature. Good resistance to wet corrosion upto approximately 300°C.