OK Autrod 12.51 GMAW
ER70S-6
Description
OK Autrod 12.51 is a copper-coated, Mn-Sialloyed
G3Si1/ER70S-6 solid wire for the GMAW
of non-alloyed steels, as used in general construction,
pressure vessel fabrication and shipbuilding.
The wire has a carefully controlled wire
chemistry and a unique surface technology providing
superior weld-metal quality at high wire feed
speeds and at high welding currents. The wire
can be used with both Ar/CO2 mixed gas and
pure CO2 shielding gas.
Welding current
DC(+)
Classifications
SFA/AWS A5.18 ER70S-6
EN 440 G3Si1
Wire composition
C Si Mn
0.1 0.9 1.5
Typical mech. properties all weld metal
Yield stress, MPa 470
Tensile strength, MPa 560
Elongation, % 26
Charpy V
Test temps, °C Impact values, J
+20 130
-20 90
-30 70
Approvals
ABS 3SA, 3YSA UDT DIN 8559
BV SA3YM ü 42.039/1
CL VdTüV
DB 42.039.06
DNV III YMS
DS EN 440
GL 3YS
LR 3 3YS
PRS 3YS
RINA SG 52 3
RS 3YMS
Sepros UNA 485178
SFS EN 440
SS EN 440
Welding parameters
Diameter, mm Wire feed, m/min Welding current, A Arc voltage, V
Deposition rate kg
weld metal/hour
0.6 5.5-13 30-100 15-20 0.7-1.7
0.8 3.2-13 60-200 18-24 0.8-3.0
0.9 3.0-12 70-250 18-26 0.9-3.6
1.0 2.7-15 80-300 18-32 1.0-5.6
1.2 2.5-15 120-380 18-34 1.3-8.0
1.4 2.3-12 150-420 22-36 1.6-8.7
1.6 2.3-12 225-550 28-38 2.1-11.4