Air Liquide Mild steel MIG Wire (15kg)

Air Liquide Mild steel MIG Wire (15kg)

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Description

Mild Steel MIG Wire SG2 or SG3

Air Liquide

Just to confuse us the designations SG2 and SG3 are now obsolete, replaced by G3Si1 and G4Si1 respectively. That’s right SG2 is now G3Si1 and SG3 is now G4Si1.

The old A18 designation is really SG2. The American spec AWS ER70S-6 encompasses both the G3Si1 and the G4Si1, although for commercial/ production reasons it is more likely to be G3Si1.

What is the difference? Well G4Si1 has higher Silicon and Manganese making it both higher strength and better able to cope with rusty steel plate without producing porous welds.

Many believe SG3 or G4Si1 is higher grade, better quality. It isn’t its just different. Because of the higher Si it flows better and for this reason many welders prefer it to SG2. SG3 also carries current better and will produce welds of acceptable appearance on settings at least 100 amps higher than SG2, with advantageous affect on productivity.(

(Picture is for illustrative purposes only as product may slightly differ but quality and value remain the same)

Additional information

Weight kg
Spec

SG2, SG3

Wire size

0.6mm, 0.8mm, 1.0mm, 1.2mm

Quantity

15kg

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