welding Consumables > TIG MILD STEEL ER70S-3
MILD STEEL TIG welding ROD ER70S-3

ER70S-3 is a copper-coated carbon steel welding rod designed for joining low-carbon steels with thoroughly cleaned surfaces, particularly thin-gauge workpieces. Its balanced chemistry delivers consistent performance for high-quality welds in manufacturing and fabrication.

Standards: AWS A5.18 ER70S-3

  • Manufactured in modern Chinese facilities with consistent quality
  • Mass production capacity for bulk orders
  • Flexible FCL/LCL ocean shipping options
  • Samples available upon request
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  •  Optimized for Clean Base Metals

ER70S-3 is 500MPa carbon steel welding rod with an excellent fluidity and crack resistance with minimal porosity when welding thin sheets.

  •   Cost-Effective Solution

lower cost vs. ER70S-6 for precision applications

  • Welding Parameters

Shielding Gas:100% CO₂

  • Recommended Applications

Structural Fabrication
Automotive Manufacturing
Bridges and vehicle construction pipelines


Chemical Composition
%C%Mn%Si%S%P
0.081.250.590.0120.013

Diameter
mminch
0.60.023
0.80.030
1.00.040
1.20.045
1.61/16