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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.
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Technical Data

Product Specifications

1. Typical Chemical Composition

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

CMnSiSPFe
0.06 – 0.121.0 – 1.60.50 – 0.90≤ 0.025≤ 0.025Balance

2. Typical Mechanical Properties

PropertyUTS (MPa)Yield Strength (MPa)Elongation (%)Impact Toughness (J @ -20 °C)
Requirement (AWS A5.18 ER70S-G)≥ 490≥ 400≥ 22≥ 27
Typical Values500 – 550420 – 46024 – 2840 – 60

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

Welding PositionCurrent (A)Voltage (V)Shielding GasGas Flow (L/min)
Flat / Horizontal150 – 30022 – 32CO₂ / Ar+CO₂ (75/25)12 – 20
Vertical / Overhead100 – 22020 – 28CO₂ / Ar+CO₂ (75/25)12 – 18
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