MIG Wire BOHLER ECOspark 8-NC SG3 1.2mm /250kg (G4Si1) (85978) Uncoated

BÖHLER ECOspark 8-NC MIG wire 1.2 mm / 250 kg (SG3/G4Si1) – copper-free (85978)

BÖHLER ECOspark 8-NC MIG wire is a high-quality copper-free solid welding wire designed for MAG welding of non-alloy and fine-grained structural steels. It corresponds to classification EN ISO 14341-A: G 46 4 M21 4Si1 / G 46 4 C1 4Si1 and AWS A5.18: ER70S-6. It belongs to the SG3/G4Si1 group and, thanks to the increased manganese and silicon content, provides good deoxidation properties, high strength, and toughness of the weld metal.

The main advantage of the wire is its specially treated copper-free ECOspark surface, which supports smooth wire feeding even at high feed speeds. A stable welding arc and limited formation of oxides and silicate deposits on the surface of the weld bead contribute to higher productivity and lower requirements for subsequent cleaning of welded joints. The wire is suitable for manual, mechanized and robotic welding and is used with shielding gases C1 (100% CO2), M21 (Ar/CO2) and M33 according to EN ISO 14175.

BÖHLER ECOspark 8-NC is designed for welding steels with a yield strength of approximately up to 460 MPa, including structural steels S235JR, S275JR, S355JR, S355J2, S460N and selected pressure vessel steels P235GH to P355GH. It is used in the production of steel structures, frames, beams, pressure vessels, machine parts, transport technology and industrial welded assemblies. The diameter of 1.2 mm enables productive welding of medium-thick and thicker steel parts.

The wire is supplied in high-capacity packaging weighing 250 kg, which is particularly suitable for automated and robotic welding workstations with high filler material consumption. Large packaging allows for longer continuous operation without frequent wire changes, reduces downtime in series production and increases the efficiency of the welding process. When using, it is necessary to ensure a compatible wire feeding system from the high-capacity packaging.

Main advantages:

• Professional welding wire BÖHLER ECOspark 8-NC
• Copper-free surface with special ECOspark treatment
• Classification SG3 / G4Si1 / ER70S-6
• Intended for MAG welding of non-alloy and fine-grained structural steels
• Very good feeding properties even at high feed speeds
• Stable welding arc and uniform weld bead appearance
• Limited formation of oxides and silicate deposits on the weld surface
• Reduced requirements for subsequent cleaning of weld joints
• High strength and good toughness of the weld metal
• Typical tensile strength 620 MPa
• Typical impact energy 80 J at -40 °C
• Option to use shielding gases C1, M21 and M33
• Suitable for manual, mechanised and robotic welding
• Used in the production of steel structures, pressure vessels and machine parts
• Diameter 1.2 mm for productive MAG welding
• High-capacity 250 kg packaging for industrial use
• Less frequent wire changes and reduced downtime in series production

Classification:

Chemical composition:

Typical chemical composition of BÖHLER ECOspark 8-NC wire according to the manufacturer's documentation. Values do not represent a chemical analysis of a specific production batch.

Mechanical properties:

Typical and minimum mechanical properties of the pure weld metal according to the ECOspark 8-NC product documentation. Values are provided for reference welding conditions and do not represent the test results of a specific delivered batch.