Copper-coated welding wire SG3
Copper-coated solid electrode wire for MIG/MAG welding. Designed for welding fine-grained carbon-manganese and structural steels, etc.
Manufactured in Poland from European steels using innovative QBA technology. It is distinguished primarily by its excellent purity and properly selected geometry. Thanks to these advantages, the wear of welding accessories is significantly reduced. The increased content of Si and Mn compared to TS2 allows for higher alloy strength and greater resistance to surface contamination of welded components. It performs exceptionally well across the full range of welding parameters, from the lowest to the highest, consistently ensuring arc stability. It finds applications in industries such as construction, automotive, petrochemical, shipbuilding, as well as in the production of boilers and containers.
APPROVALS
TECHNICAL PARAMETERS
| Type | Copper-coated |
| Grade | TS3 – SG3 – G4Si1 |
| Classification | EN ISO 14341-A: G 42 3 C1 4Si1 EN ISO 14341-A: G 46 4 M21 4Si1 SFA/AWS A5.18: ER 70S-6 |
| Diameters | 0,8 mm (actual diameter 0,781-0,785 mm), 1,0 mm (actual diameter 0,981-0,985 mm) 1,2 mm (actual diameter 1,181-1,185 mm) It is possible to manufacture a custom wire diameter according to agreements. |
| Type of welded material | Structural steels with yield strength bis 460 MPa, tj. S235/P235 – S460/P460 |
| Welding positions |  |
DESIRED CHEMICAL COMPOSITION
| C | Si | Mn | P max | S max | Ni max | Cr max | Mo max | V max | Cu max | Ai max | Ti+Zr max |
| 0,065-0,085 | 0,80-0,95 | 1,6-1,8 | 0,020 | 0,020 | 0,15 | 0,15 | 0,15 | 0,03 | 0,03 | 0,02 | 0,15 |
MECHANICAL PROPERTIES OF THE ALLOY
| Shielding gas | ReL / 0,2 MPa | Rm MPa | A5 % | kV, J +20 oC | kV, J -30 oC | kV, J -40 oC | |
| M21 | standard actual | > 460 485 | 530-680 560 | > 20 27 | > 47 160 | > 47 80 | |
| C1 | standard actual | > 420 450 | 500-640 560 | > 20 25 | > 47 150 | > 47 75 |
WIRE WEIGHT AND SPOOL TYPE
| BS300 – 15 kg |  |
| BS300/2 – 15 kg |  |
| B300 – 15 kg |  |
DRUMS
250 kg h – 85 cm Ø – 50 cm |  |
500 kg h – 90 cm Ø – 59,6 cm |  |
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