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ER120S -1 is used for a variety of steels where
high strength and ductility are critical. It is
designed to provide high notch toughness,
yield strength, and impact resistance.
Typical Applications
• Welding all steels in the 100,000 psi range
including T-1 and HY100
• Lifting and handling machines
• Bridges
• Tanks
• Transport
• Shipbuilding
• Railway sector
• Mines
• Vibrant Sieves
• Tank lorries
AWS Specification
AWS A5.28/A5.28:M2005
AWS Classification ER120S-1
Welding Current for MIG process
GMAW - DCEP
Typical Wire Chemistry
C 0.10
Mn 1.40 - 1.80
Si 0.25 - 0.60
P 0.010
S 0.010
Ni 2.00 - 2.80
Cr 0.60
Mo 0.30 - 0.65
V 0.03
Ti 0.10
Zr 0.10
A1 0.10
Cu 0.25
OTHER 0.50
Typical Mechanical Properties
(As Welded)
Yield Strength, ksi 105
Tensile Strength, ksi 120
Elongation%, min 14
Welding Positions
F,V,OH,H
Available Diameters MIG and
suggested Operating Range in Amps
.035" 100 - 150
.045" 150 - 200
Available Diameters TIG
1/16", 3/32" & 1/8"
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this alloy >
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