Stick electrode, size: 5.0 mm Ø , 350 mm long, PU = 78 pieces / 5 kg, with rutile-based special coating for welding aluminium bronzes. Weld metal of aluminium bronze, DIN 1733: EL - CuAl 9, material number: 2.0926, DIN 8555: E31 - UM - 150 - C.
Fig. may deviate
Description
Most important areas of application
Copper-aluminium alloys, e.g. Al-bronze with 7 - 9 %Al, as well as build-up welding on unalloyed and low-alloyed steels and on cast iron
Physical properties (guide values)
Electrical conductivity
at 20°C
[S m/mm2]
Thermal conductivity at 20°C
[Wl(m K)]
Linear coefficient of thermal expansion (20 - 100°C)
[I/K]
6
70
17 * 10-6
Mechanical quality values of the weld metal (guide values)
Heat treatment
Test temperature
[°C]
untreated
+2O°C
0.2% Yield strength
[N/mm²]
230
Tensile strength
[N/mm²]
500
Elongation at break
[%]
25
Brinell hardness [%]
HB 1011 000
140
Directional analysis of the pure weld metal in %
Cu
Al
Mn
Fe
Base
7,5
1,7
0,7
Special instructions
Guide the electrode as perpendicular as possible to the seam. Preheating is only necessary for large workpieces. For build-up welding on ferrous materials, direct the arc to the flank of the preceding bead if possible.
Re-drying
Generally not necessary.
The cladding tolerates re-drying up to a maximum of 70 - 90°C
