®COPYRIGHT
2000 THE ESAB GROUP, INC. LESSON
VI 6.6.2
Spoolarc
29S (AWS
Class ER70S-3)
- Spoolarc 29S is a copper coated wire for
general purpose welding with the gas-metal
arc process. It contains sufficient deoxidizers to
produce sound welds on killed and semi-killed
steels and adequate welds on rimmed steels. Carbon
dioxide or argon-CO2 shielding gas mixtures
may be used. The smaller diameters (up to
.045") are especially useful for welding light gauge mild steel in all positions.
Among the many
applications for which Spoolarc 29S may be used are farm equipment, metal furniture,
iron work, trailers, truck bodies,
metal fixtures, light vessels, and hoppers. A.
Typical
Chemical Analysis
of the
Wire Carbon
0.08% Phosphorus
0.007% Manganese
0.62% Sulfur
0.009% Silicon
0.27% B.
Typical
Mechanical Properties
of the
Weld Metal
Using CO2
Shielding Gas
Yield Point, psi
60,100 Tensile
Strength, psi 75,000
% Elongation (2")
32 Charpy
V-Notch Impacts 95
ft.-lbs. @0°F 6.6.3
Spoolarc
85 (AWS
Class ER70S-4)
- Spoolarc 85 is a copper plated gas-metal
arc welding wire. This wire contains
more manganese and silicon for greater deoxidation than ER70S-3
wire. The additional levels of deoxidizers provides more improved rust and
mill scale tolerance,
while improving bead cosmetics. A.
Typical
Chemical Analysis
of the
Wire Carbon
0.07% Phosphorus
0.004% Manganese
0.75% Sulfur
0.012% Silicon
0.39% Copper
0.16% B.
Typical
Mechanical Properties
of the
Weld Metal
Using CO2
Shielding Gas
Yield Point, psi
65,300 Tensile
Strength, psi 78,900
% Elongation (2")
26
