TAURUS TIG SILICON BRONZE is pure copper filler rod deoxodised with 3% silicon for welding a wider range of copper alloys including overlaying of steels and cast irons. TAURUS TIG SILICON BRONZE should be shielded with pure argon but pure helium provides deeper penetration, higher travel speeds and allows reduced preheating.
APPLICATIONS
Applications include plate for chemical plant and moulds, stills and calorifiers, rods and wires for electrical components and tubes for heat exchangers.
MATERIALS TO BE WELDED
General purpose including phosphorous deoxidised copper, silicon bronze, nickel silver and some brasses.
WELDING POSITIONS
• Downhand
• Horizontal flat
• Horizontal vertical
• Vertical up
• Overhead
CLASSIFICATIONS
AWS A5.7 ERCuSi-A
DIN 1733 SG-CuSi3 (2, 1461)
BS 2901Pt3 C9
EN 24373 CU6560 CuSiMn1
| COMPOSITION | % |
| Silicon | 2.80 – 4.0 |
| Iron | 0.3 Max |
| Manganese | 0.75 – 1.5 |
| Phosphorous | 0.02 Max |
| Zinc | 0.02 Max |
| Tin | 0.2 Max |
| Lead | 0.02 Max |
| Aluminium | 0.01 Max |
| Other totals | 0.4 Max |
| Copper | Balance |
| MECHANICAL PROPERTIES | AS WELDED |
| Tensile strength | 330-370 MPa |
| Elongation on 5d | 40 % Max |
| Hardness | 80 – 90 HB |
