DAIKOWT CuSi3
GTAW
- COPPER ALLOYS
CuSi
Description
Silicon Bronze Alloy Welding Rod
Copper-silicon alloy, with controlled Si content (2.80-3.20%) to prevent welding defects. This rod is developed for welding on Cu-Mn, Cu-Si-Mn, and low-alloy Cu-Zn materials. It is resistant to high temperatures and corrosion. Thanks to its wide melting range and excellent weldability, this alloy reduces post-weld finishing operations. It is suitable for welding copper and oxygen-free Cu-based materials. It is also used for GMAW brazing of galvanized steel and laser brazing. For high thicknesses, preheating to 300°C is recommended.
Specifications
AWS A5.7
ERCuSi-A
DIN 1733
SG-CuSi3
Shielding
I1
Positions
PA, PB, PC, PD, PE, PF
Current
DC-
Packaging Type
5kg carton tube
Asme qualifications
F-No (QW432)
32
A-No (QW442)
-
Hardness
90HB
Chem. Comp. %
0
Mn
0.9
Al
0.001
Sn
0.01
P
0.01
Si
2.9
Zn
0.03
Mechanical Properties
min
variant
Tensile strength Rm MPa
345
350
Yield strength Rp0.2 MPa
-
140
Elongation A (L0=5d0) %
0
40
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
Welding Parameters
1.6
mm
2.4
mm
Ampere
110A - 150A
175A - 250A
Voltage
-
-
Packaging
Ø 1,6÷4,0 mm
Ø 1,6÷4,0 mm
Packaging Type
5kg carton tube
5kg carton tube
