ER70S-6 TIG

 

AWS A5.18 ER70S-6

ASME SFA 5.18 ER70S-6

ER70S-6 contains high levels of manganese and silicon for stronger deoxidizing power where stringent cleaning procedures are not possible. This wire has been designed to provide X-ray quality porosity-free welds and the highest tensile strength (as welded) of the plain carbon steel wires. The high silicon content increases the fluidity of the weld pool, creating a smoother bead appearance and resulting in minimal post-weld grinding. ER70S-6 is excellent where poor fit-ups or rusty and oily plates may be used.

 

 

TYPICAL WIRE CHEMISTRY (%)

 

 

-	ER70S-6	AWS Spec
C	0.100	0.06-0.15
Mn	1.700	1.40-1.85
Si	1.000	0.80-1.15
P	0.010	0.025 max
S	0.015	0.035 max

 

Typical mechanical properties of weld metal (C02 shielding gas)

 

-	AWS Spec	ER70S-6
Yield strength (psi)	60,000 min	0.06-0.15
Ultimate tensile strength (psi)	72,000 min	90,000
Elongation in 2" (%)	22 min	25
Charpy V-notch at 0 F (ft. lbs)	20 min	28
Reduction of area	-	60
Average Brinell Hardness	-	160