SG2 is a low alloy steel gas shielded welding wire,protected with pure c02 or Ar+C02 gas-Stable arc,low spatters,excellent fabrication weldability and lowsensitivity of weld gas porosity can be obained during welding.lt is suitable for all position welding especially with large welding current range.lt can show very good welding performance.
APPLICATIONS:
Suitable for single-pass and multi-pass welding for structures fabricated by carbon steel and 500MPa grade low alloy steel,such as vehicles,bridges, construction and mechanical structures etc.
INSTRUCTIONS:
a.Suitable for using shielding gas at the speed of 20-25 liters per minute.
b. Windshield must be set up in the welding zone,due to gas porosity may be caused by strong wind. c.Wire extention should be 10-20mm if the current range is under 300A and if above 300A,20-25mm.

MIG Welding Wire 

Characteristics and Application

Typical chemical Composition of Weld Metal (%)

Welding Positions:

Notes on usage:

1.E.S.O. (Electrode Stick Out) must be kept between 15-25mm.

2.Proper welding conditions must be adopted according to the purpose as the bead appearance and penetration are both varied widely.

3. Use 100% Co2 or Ar + Co2 gas mixture as shielding gas.

4. Control within the optimal range of welding conditions for this wire as possible.

Typical Mechanical Properties of Weld Metal

C 0.06-0.14 Mn 1.4-1.6 Si 0.8-1.0 P ≤0.025 S ≤0.025 Ni ≤0.15 Cr ≤0.15 Mo ≤0.15 V ≤0.0.03 Cu ≤0.35 Al≤0.02 Ti+Zr ≤0.15

AWS A5.18 ER70S-6 

JIS Z3312 YGW12

G3Si1, SG2

Yield strength ≥420MPa Tensile Strength 520-640MPa Elongation ≥22% Charpy V-Notch -30℃ ≥47J