Welding wire MTC MT-CuAl8 Ni2 2.0922

Welding wire MTC MT-CuAl8 Ni2 2.0922

MTC MT-CuAl 8 Ni 2 MIG wire is a multi-alloy aluminum bronze wire electrode for MIG welding of copper-aluminum alloys, aluminum bronzes with approx. 7–9% aluminum, as well as multi-alloy aluminum bronzes. The welding filler metal is suitable for the manufacturing, repair, and maintenance of components with requirements for strength, toughness, and wear resistance.

Technical details

Designation: MT-CuAl 8 Ni 2
Welding process: MIG
Standard: EN ISO 24373 – S Cu 6327
Material no.: 2.0922
Alloy type: Multi-alloy aluminum bronze
Shielding gas: Welding argon / I1
Current type / Polarity: DC positive pole
Welding positions according to EN ISO 6947: PA, PB, PF
Available wire diameters: 1.00 mm / 1.20 mm / 1.60 mm

Standard analysis of pure weld metal:
Cu base, Al approx. 8%, Ni approx. 2.2%, Mn approx. 2.2%, Fe approx. 2%

Mechanical properties of weld metal, reference values:
0.2% yield strength: approx. 270 MPa
Tensile strength: approx. 530 MPa
Elongation at break A5: approx. 30%
Notched bar impact energy AV: approx. 70 J
Hardness: approx. 140 HB 10/1000

Physical properties, reference values:
Electrical conductivity at 20 °C: approx. 5 S·m/mm²
Thermal conductivity at 20 °C: approx. 50 W/(m·K)

Processing note:
When MIG welding, preheating is generally only required for large workpieces. For the first layer of surfacing welds on ferrous materials, pulsed arc welding is recommended.