Copper Coated

JACKSUN MIG 70SG

AWS/ASME: A5.18 ER70S-G

JACKSUN MIG 70SG is a copper-coated solid wire designed for MIG/MAG and TIG welding of carbon steels and low alloy steels.
Provides versatility, as it can be manufactured to meet special requirements (ER70S-G is not strictly composition-limited like ER70S-6).
Excellent for structural welding, fabrication, and pipeline welding.
Delivers smooth arc stability, low spatter, and consistent bead quality.
Suitable for manual, semi-automatic, and robotic welding processes.
Typical Chemical Composition of Weld Metal (% by weight)

1. (Varies depending on customer specification within ER70S-G limits)

C	Mn	Si	S	P	Fe
0.06 – 0.12	1.0 – 1.6	0.50 – 0.90	≤ 0.025	≤ 0.025	Balance

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ -20 °C)
Typical Values	500 – 550	420 – 460	24 – 28	40 – 60

3. Recommended Welding Parameters — AWS A5.18 ER70S-G

Welding Position	Current (A)	Voltage (V)	Shielding Gas	Gas Flow (L/min)
Flat / Horizontal	150 – 300	22 – 32	CO₂ / Ar+CO₂ (75/25)	12 – 20
Vertical / Overhead	100 – 220	20 – 28	CO₂ / Ar+CO₂ (75/25)	12 – 18

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