OK Autrod 2209 GMAW
ER2209
Description
A continuous, solid, corrosion-resistant, duplex
wire for welding austenitic-ferritic stainless alloys
of the 22% Cr, 5% Ni, 3% Mo types.
OK Autrod 2209 has high general corrosion
resistance. In media containing chloride and
hydrogen sulphide, the alloy has a high resistance
to intergranularcorrosion, pitting and especially
to stress corrosion. The alloy is used in a
variety of applications across all industrial segments.
Welding current
DC(+)
Classifications
SFA/AWS A5.9 ER2209
EN 12072 G 22 9 3 NL
Typical chemical composition, aw (%)
C Si Mn Cr Ni Mo Cu
<0.03 0.5 1.7 22.5 8.5 3.3 <0.3
Typical mech. properties all weld metal
Yield stress, MPa 600
Tensile strength, MPa 765
Elongation, % 28
Charpy V
Test temps, °C Impact values, J
+20 100
-20 85
-60 60
Approvals
DNV For duplex stainless steels
GL 4462S
RINA Restricted availability
Sepros UNA 485179
UDT DIN 8556
VdTüV
Welding parameters
Diameter, mm Wire feed, m/min Welding current, A Arc voltage, V
Deposition rate kg
weld metal/hour
0.8 3.4-11.0 50-140 16-22 0.8-2.6
1.0 2.9-8.4 80-190 16-24 1.0-3.2
1.2 4.9-8.5 180-280 20-28 2.6-4.6
1.6 3.2-5.5 230-350 24-28 3.0-5.2