AWS A5.18 ER70S-3 MIG Welding Wire can be used in the welding of the corresponding strength grade steel structured. It can be applied to the welding of sheet metal parts such as engineering machinery, ships, vehicles and so on.

Characteristics: welding wire is 500MPa level carbon steel wire with the protection of C02 or rich argon gas. The welding fluidity and crack resistance are superior, with small splash, and the welding slag is thin and easy to fall off. It is suitable for the welding of smooth and delicate welding bead.

MIG Welding Wire 

Characteristics and Application

Typical chemical Composition of Weld Metal (%)

Welding Positions:

Notes on usage:

1 . Clear rust, oil, water and other impurities on the weldments before welding.
2. The size of the welding line energy will directly affect the mechanical properties of the weld. The size of the line energy depends on the important level of the structure. The more important the structure is, the smaller the line energy should be taken.
3. Welding parameters are only provided for reference. The user should develop an appropriate production welding specifications according to the circumstances.

Typical Mechanical Properties of Weld Metal

C 0.08  Mn 1.30 Si 0.59  P 0.015  S 0.0012 Ni 0.03 Cr 0.02  Mo 0.002 V 0.003 Cu 0.09

AWS A5.18 ER70S-3

Yield strength 440MPa  Tensile Strength 540MPa  Elongation 25%  Charpy V-Notch -20℃ 80J