SAW Flux MAXFLUX SAF-704
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MAXFLUX SAF -704

Maxflux SAF-704 is a fluoride-basic type flux suitable to weld with composite SAW wires. The flux is neutral in nature and is also suitable with all HF (Hard Facing) class wires. The deposited weld metal has low diffusible hydrogen content and crack resistant during hard surfacing.

Maxflux SAF-704 flux suited with composite SAW wires. With ECNi2 wire the weld metal gives excellent mechanical and charpy V notch impact properties (40-70J at - 51ºC). For hard surfacing application on steel mill rolls, the flux is suitable with Maxfil HF-20, Maxfil HF-30, Maxfil HF-45 & Maxfil HF-55 wires depending upon the composition & hardness requirement. Recommended welding procedure shall be followed as in our product literature.

Precaution

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

CHEMICAL COMPOSITION OF ALL WELD METAL (%)


WITH SAW WIRE
Elements
CMnSiCrNiMoN
AUTOTHERME GRADE-HC
Typical0.05-0.10 1.0-1.6 0.30-0.70 - 2.0-2.9--
MAXFIL HF-20
Typical
0.08 MAX 
0.50-1.20 0.60 MAX 1.2-2.0 2.0-3.0 0.40-0.80 0.06-0.15
MAXFIL HF-30
Typical
 0.20 MAX  0.50-1.20  0.60 MAX  4.0-8.0 2.0-4.0 
0.40-0.80 0.06-0.15 
MAXFIL HF-45
Typical
 0.10-0.30 0.80-1.600.80 MAX11.0-14.03.0-4.5 0.40-0.800.06-0.15
MAXFIL HF-55
Typical
0.30-0.60 
1.0-2.0 
0.80 MAX 
4.0-6.0 0.50-1.00 
0.50-1.00 
0.06-0.15

    

MECHANICAL PROPERTIES OF ALL WELD METAL


WITH SAW WIRE
UTS 
0.2% YS % EI Hardness 3L

(MPa)
(MPa)
(L=4d)
 (HRC)

AUTOTHERME GRADE-HC

 550-700
470-600 24.0-27.0 - 

MAXFIL HF-20

  ---23-28

MAXFIL HF-30

---30-40
MAXFIL HF-45
---42-48
MAXFIL HF-55
---52-54

    

Additional Information

BASICITY INDEX: ~1.80-3.40

DE TAP DENSITY: 1.10 – 1.40 g.m. / c.c.

GRAIN SIZE: (+5BSS): 0%, (-10,+44 BSS): 90-95%, (-100 BSS): 0-2%

PACKAGING: 25 Kg POLY-LINED PAPER BAG

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