
Mergearc SAF- 723 is an agglomerated flux to weld both medium & high tensile strength structural steels. The flux works at reasonably higher welding speed giving smooth bead and easy slag removal characteristics. The flux is also suitable for multi-wire SAW applications with good CVN toughness. The weld metal gives very less diffusible hydrogen (<5 ml/100gms of weld metal) and radiographic quality deposits.
Mergearc SAF-723 flux is suitable for single & multilayer welding of various
structural, pressure vessels & other medium to high tensile strength steels.
Especially suitable for welding of ASTM class steels: A204 Grade A, A516 Gr. B, C &
IS 2002type B, API Gr. 5L X60-X 80 etc.
Re-dry the flux at 300-350°C for two hours before use.
WITH SAW WIRE | Elements | C | Mn | Si | S | P | Mo | Cu |
MERGEARC GRADE-J | Typical | 0.075 | 1.540 | 0.480 | 0.018 | 0.023 | 0.48 | 0.150 |
WITH SAW WIRE | UTS | 0.2% YS | % EI | CVN Impact (Joules) | CVN Impact (Joules) |
(MPa) | (MPa) | (L=4d) | -20°C | -30°C | |
MERGEARC GRADE-J SR:620°C/2 HRS | 608 | 528 | 27 | 105 | 88 |
SiO2 + TiO2 | CaO + MgO | Al2O3 + MnO | CaF2 |
11% | 42% | 22% | 25% |
BASICITY INDEX: ~2.30
GRAIN SIZE: 0.35 – 1.20 mm
PACKAGING: 25 Kg POLY-LINED PAPER BAG