TAL 1720



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TAL 1720 is an alkaline agglomerated flux for welding low-alloy fine-grained steels in combination with the following wires: S1, S2, S2Si, S2Mo. Intended for AC, DC current welding. It is suitable for one- or two-electrode multilayer welding. An additional advantage is great slag travel trail and a very low level of hydrogen diffusion (<4ml/100g of weld).

Chemical composition [%] Boniszewski coefficient: Weld deposit chemical analysis [%]
CaO + MgO 25%
Al2O3 + MnO 40%
CaF2 10%
SiO2 + TiO2 20%
~ 1,8 C Si Mn Cr Mo Ni
S1 0,05-0,08 0,2 –0,4 0,9 –1,3
S2 0,05 –0,08 0,2 –0,4 1,4 – 1,8
S2Si 0,05 –0,08 0,2 –0,5 1,4 – 1,8
S2Mo 0,04 –0,08 0,2 –0,4 1,3 – 1,7 1 0,5
Additional information: Weld deposit mechanical properties:
Flux density: 1.1 kg/dm (lt.)
Granulation: 2 – 16, 2 – 20
Current capacity: 1500 A (DC or AC)
Packaging: 25 kg bag, 1000 kg Big Bag
Rm [MPa] Re [MPa] A5 [%] KV [J]
0°C -20°C -40°C -51°C -73°C
S1 >510 >400 >24 >140 >100  >50
S2 >500 >420 >22  >90 >60 >47
S2Si >560 >430 >22  >90 >60 >47
S2Mo >570 >490 >20 >130 >80  >90 >47 >27