MERGEARC SAF -723
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Flux

MERGEARC SAF -723

AWS: SFA 5.23 F8P2-EA4-A4

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.

Precaution

Re-dry the flux at 300-350 C for two hours before use.

Approvals
    BHEL
CHEMICAL COMPOSITION OF ALL WELD METAL (%)


WITH SAW WIRE
Elements
CMnSiSPMoCu
MERGEARC GRADE-J  
Typical
0.075 
1.540 0.480 0.018 0.023 0.48 0.150

    

MECHANICAL PROPERTIES OF ALL WELD METAL


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

    

MAJOR CONSTITUTENTS


SiO2 + TiO2 CaO+MgO Al2O3+MnO CaF2
11%
42%
22%
25%

    

Additional Information

BASICITY INDEX : ~2.30

GRAIN SIZE : 0.35 – 1.20 mm

PACKAGING : 25 Kg POLY-LINED PAPER BAG

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