The OK Autrod 12.51 wire is a copper-coated wire, type G3Si1/ER70S-6, ideal for GMAW application in welding all general engineering and structural steels, low alloy steels, and carbon steels with manganese. This wire can be welded using either a gas mixture or pure CO2 as shielding gas.

Properties and Applications:

• Excellent performance at high current flows and temperatures, with a stable welding arc and low spatter.
• Ideal for mechanized welding applications, providing consistent quality and high production efficiency.
• Suitable for use with engineering and structural low-alloy steels, such as construction and industrial applications.

Technical Characteristics:

• Specifications:
  • EN ISO 14341-A: G 42 4 M21 3Si1
  • SFA/AWS A5.18: ER70S-6
• Wire Composition (%):
  • C: 0.08
  • Mn: 1.46
  • Si: 0.85
  • S: 0.012
  • P: 0.013
  • Ni: 0.04
  • Cr: 0.03
  • Mo: 0.01
  • Cu: 0.07
• Typical Material Properties:
  • 80% Argon - 20% CO2
• Material Strength: 480 MPa (69.6 ksi)
• Tensile Strength: 560 MPa (81.2 ksi)
• Elongation: 26%
• Charpy V-Notch Toughness:
  • At 20°C (68°F): 120 J (88.5 ft-lb)
  • At -20°C (-4°F): 130 J (96 ft-lb)
  • At -40°C (-40°F): 90 J (66 ft-lb)
• Deposit Data:
  • 0.6 mm diameter: Current 30-100 A, Voltage 15-20 V, Wire Feed Speed 5.5-13 m/min, Deposition Rate 0.7-1.7 kg/h
  • 1.0 mm diameter: Current 80-300 A, Voltage 18-32 V, Wire Feed Speed 2.7-15 m/min, Deposition Rate 1.0-5.6 kg/h
  • 1.6 mm diameter: Current 225-550 A, Voltage 28-38 V, Wire Feed Speed 2.3-12 m/min, Deposition Rate 2.1-11.4 kg/h