COPPER-COATED TIG WELDING FILLER ROD ER70S-6 (SV-08G2S) (2.0 / 3.0 / 4.0 MM, 5 KG TUBE)

COPPER-COATED TIG WELDING FILLER ROD ER70S-6 (SV-08G2S) (2.0 / 3.0 / 4.0 MM, 5 KG TUBE)

This copper-coated steel filler rod is designed for high-quality manual gas tungsten arc welding (TIG/GTAW) of carbon and low-alloy steel components. A thin layer of copper coating ensures perfect arc stability, provides excellent corrosion protection during storage, and minimizes metal spatter. Supplied in a convenient, protective plastic tube (case) weighing 5 kg.

Product NameSizesUnitPrice (incl. VAT)Production
1Copper-Coated Welding Rod2 mmkg26 000China
2Copper-Coated Welding Rod3 mmkg26 000China
3Copper-Coated Welding Rod4 mmkg26 000China
ParameterValue / Description
Material TypeSteel filler rod (straight welding wire segments)
CoatingGalvanic copper coating (rust protection, enhanced electrical contact)
AWS Classification (USA)ER70S-6
GOST Classification (RF)Sv-08G2S-O (copper-coated)
Welding MethodGas Tungsten Arc Welding (TIG / GTAW)
Current TypeDirect Current Straight Polarity (DC-)
Shielding Gas100% Argon (Ar)
Rod Length1000 mm (1 meter)
Packaging TypeSealed plastic tube (case) with a cap
Pack Weight5 kg
Available Diameters1.6 mm / 2.0 mm / 2.4 mm / 3.2 mm / 4.0 mm

Product Advantages

Reliable Packaging: The rugged plastic tube protects the rods from bending, dirt, dust, and moisture during warehouse storage and transit.

High-Quality Weld Bead: Increased manganese (Mn) and silicon (Si) content effectively deoxidizes the metal puddle, preventing weld porosity.

Corrosion Resistance: Dense copper plating completely eliminates rust formation on the rods, even during long-term storage in humid conditions.

Smooth Arc Striking: The copper layer guarantees high electrical conductivity and stable arc burning.

Stamping / Marking: Each rod is factory-stamped at the tip with its grade designation (ER70S-6), preventing any mix-ups in the workshop.

Fields of Application

Welding of metal structures, equipment frames, and pressure vessels.

Automotive body repairs, welding of exhaust systems, chassis frames, and sheet metals.

Installation of technological pipelines of various diameters.

Extensively used in mechanical engineering, shipbuilding, and the construction industry.

Welding Parameters and Application by Diameter

Rod DiameterIntended Metal ThicknessRecommended Welding Current (DC-)Primary Application
2.0 mm (Blue tube)Thin metal: 1.5 – 3.0 mm70 – 120 AAuto body repair, thin-walled pipes, mufflers, lightweight structures.
3.0 mm (New Blue)Medium metal: 3.0 – 5.0 mm130 – 180 AWelding of profile tubes, tanks, and medium-thickness steel structures.
4.0 mm (Red tube)Thick metal: 5.0 mm and above180 – 240 AMassive components, thick-walled flanges, repair of construction machinery.

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