Arc Welding Service

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ER70S-3 TIG

Tag : ER70S-3 TIG

ER70S-3 TIG

AWS A5.18 ER70S-3

ASME SFA 5.18 ER70S-3

ER70S-3 is a silicon and manganese deoxidized wire used for mild and low alloy steel general purpose fabrication. A well

balanced silicon and

manganese content permits its use with CO2, Argon-Oxygen mixtures, or mixtures of the two. This wire

may be used for short-circuiting arc (dip-transfer), buried arc, as well as spray transfer arc processes. ER70S-3

produces quality welds with rimmed steels, better welds on semi-killed

steels and excellent welds on killed steels. It yields an almost slag-free deposit which does

not require cleaning for many applications thereby

providing low plate preparation costs, good bead appearance and welder satisfaction.

TYPICAL WIRE CHEMISTRY (%)

Typical mechanical properties of weld metal (C02 shielding gas)

-	AWS Spec	ER70S-3
Yield strength (psi)	60,000 min	62,400
Ultimate tensile strength (psi)	72,000 min	75,500
Elongation in 2" (%)	22 min	30.7
Charpy V-notch at 0 F (ft. lbs)	20 min	66
Reduction of area	-	59
Average Brinell Hardness	-	130