Stick electrode, size: 2.5 mm Ø , 350 mm long, PU = 287 pieces / 5 kg, with rutile-based special coating for welding aluminium bronzes. Welding material of aluminium bronze, DIN 1733: EL - CuAl 9, material number: 2.0926, DIN 8555: E31 - UM - 150 - C.
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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
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| 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 |
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| 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 |
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140 |
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| Directional analysis of the pure weld metal in % |
| Cu |
Al |
Mn |
Fe |
| Base |
7,5 |
1,7 |
0,7 |
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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.
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Re-drying
Generally not necessary.
The cladding tolerates re-drying up to a maximum of 70 - 90°C
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