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? BÖHLER EMK 8 – GMAW grade G 4Si1 / ER70S-6 solid copper wire for professionals! ?

BÖHLER EMK 8 is a copper solid wire designed for GMAW welding, ensuring minimal spatter when welding with both mixed and CO₂ gases. Thanks to its high current capacity, stable arc and almost residue-free weld surface, this wire offers the best conditions for efficient welding processes. The excellent feeding characteristics enable high wire feeding speeds, especially during robotic welding.

⚙️ Key features and applications:

✅ Minimal splatter – Provides cleaner welds and reduces finishing time.

✅ High current carrying capacity – Ideal for welding thick parts.

✅ Stable electric arc – Guarantees even and high-quality welds.

✅ Excellent feeding characteristics – Enables high wire feeding speeds, which is particularly beneficial in robotic processes.

✅ Variety of packaging – Available in bulk packaging from ECOdrum 250 kg to SQUAREdrum 550 kg, allowing customization to meet individual production needs.

? Technical specifications:

? Classifications:

• EN ISO 14341-A: G 46 4 M21 4Si1
• AVS A5.18 / SFA-5.18: ER70S-6

? Chemical composition (typical):

• C: 0,1%
• Si: 1.0%
• Mn: 1.7%

? Mechanical properties (typical):

• Yield strength (Re): 480 MPa (≥460 MPa)
• Tensile strength (Rm): 620 MPa (530-680 MPa)
• Elongation (A): 26% (≥20%)
• ISO-V impact strength (KV): 150 J at +20°C; 80 J at -40°C (≥47 J).

? Application:

BÖHLER EMK 8 is ideal for welding steel structures with higher strength requirements, such as:

• Structural steels: S235J2G3 – S355J2G3, E360
• Boiler steels: P235GH, P265GH, P295GH
• Fine-grained steels: S275N – S460N

?️ Recommendations for shielding gases:

• Mixtures of argon with 15-25% CO₂.
• 100% CO₂.

Polarity: DC (+)