ER70S-3 welding wire is a general purpose MIG wire suitable for many carbon steel welding applications. It is a silicon and manganese deoxidized wire making it excellent for general fabrication. This product requires a shielding gas.         

1. Typical Applicatons:

General fabrication

Metal furniture

Sheet metal

Ornamental iron fabrication

Farm equipement

Auto frames

2. AWS Specification

AWS A5.18/A5.18M: 2007

AWS Classification ER70S-3

3. Welding Current for MIG process

DCEP(Electrode Positive, Reverse Polarity)

4. Typical Wire Chemistry with 100% CO2 shielding gas

C: 0.06-0.15

Mn: 0.90-1.4

Si: 0.45-0.75

P: 0.025

S: 0.035

Ni: 0.15

Cr: 0.15

Mo: 0.15

V: 0.03

Cu: 0.50

5. Typical wire chemistry with Argon+20% CO2 shielding gas

C: 0.08

Si: 0.45

Mn: 1.06

P: 0.014

S: 0.01

6. Typical Mechanical Properties (As Welded) with 100% CO2 shielding gas

Yield Strenth, 62ksi

Tensile Strenth, 75ksi

Elongation%, min33

7. Typical Mechanical Properties (As Welded) with Argon + 20% CO2 shielding gas

Yield Strenth, 63ksi

Tensile Strenth, 78ksi

Elongation%, min30

8. Welding Positions: F, V. OH, H

9. Available Diameters MIG and suggested Operating Range in Amps

.023" 35 - 70
.030" 50 -120
.035" 50 - 140
.045" 70 - 350
1/16" 120 - 450

10. Available Diametes TIG

.035", .045", 1/16", 3/32", 1/8" & 5/32"