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GEEFLUX 550

IDENTIFICATION
GEEFLUX 550

CLASSIFICATION
AWS/SFA 5.17 : F7A8 EH10K
AWS/SFA 5.17 : F7A6 EM12K
AWS/SFA 5.17 : F7P8 EH12K
AWS/SFA 5.23 : F7P6 EA2-A2
AWS/SFA 5.23 : F7A(P) 2EA4-A4
AWS/SFA 5.23 : F7P2 EB2-B2;
AWS/SFA 5.23 : F9P2 EB3-B3
AWS/SFA 5.23 : F9P8 EF3-F3
AWS/SFA 5.23 : F9(P)2 EG-G
AWS/SFA 5.23 : F7A10-ENi1-Ni1
AWS/SFA 5.23 : F7P10-ENi2-Ni2

DESCRIPTION
Geeflux 550 is an agglomerated flux of fluoride basic type for joining and surfacing and applications with dissimilar steels. Mainly for high strength and cryogenic fine grained structural steels. The Si and Mn pick-ups and burn-off rates are Neutral because of its metallurgical behaviour. Flux is weldable with almost every wire electrode. The flux can be used for tandem and multi wire welding with DC and AC.  Very good slag detach-ability.

MAIN CONSTITUENTS

SiO2 + TiO2 CaO + MgO Al2O3 + MnO CaF2
15% 35% 20% 25%

CHEMICAL COMPOSITION OF THE WIRE (AS PER AWS/SFA 5.17)

Wire C Si S P Mn Cu
EH10K 0.07 - 0.15 0.05 - 0.25 0.025 max 0.025 max 1.30 - 1.70 0.35 max
EM12K 0.05 - 0.15 0.10 - 0.35 0.030 max 0.030 max 0.80 - 1.25 0.35 max
EH12K 0.06 - 0.15 0.20 - 0.65 0.025 max 0.025 max 1.50 - 2.00 0.35 max

CHEMICAL COMPOSITION OF THE WELD METAL (AS PER AWS/SFA 5.23)

Wires C Mn Si S P Cr Mo Cu Ni
EA2-A2 0.12 max 1.40 max 0.80 max 0.030 max 0.030 max - 0.40 - 0.65 0.35 max -
EA4-A4 0.15 max 1.60 max 0.80 max 0.030 max 0.030 max - 0.40 - 0.65 0.35 max -
EB2-B2 0.05 - 0.15 1.20 max 0.80 max 0.030 max 0.030 max 1.0 - 1.5 0.40 - 0.65 0.35 max -
EB3-B3 0.05 - 0.15 1.20 max 0.80 max 0.030 max 0.030 max 2.0 - 2.5 0.90 - 1.20 0.35 max -
EF3-F3 0.17 max 1.25 - 2.25 0.80 max 0.030 max 0.030 max - 0.40 - 0.65 0.35 max 0.7 - 1.10
EG-G 0.06 max 1.30 max 0.25 max 0.025 max 0.025 max - - 0.35 max 1.20 max
ENi1-Ni1 0.12 max 1.60 max 0.80 max 0.025 max 0.030 max 0.15 max 0.35 max 0.35 max 0.75 - 1.10
ENi2-Ni2 0.12 max 1.60 max 0.80 max 0.025 max 0.030 max - - 0.35 max 2.0 - 2.90

MECHANICAL PROPERTIES OF THE WELD METAL (RANGE) IN AS-WELDED

  UTS (MPa) YS (MPa) EL (%) CVN Impact Value
Wire (L=4D) Temp. Joules
        +20°C 160 J
        ± 0°C 140 J
EH10K 510 min 400 min 22 min -20°C 100 J
        -40°C 47 J
        +20°C 160 J
        ± 0°C 140 J
EM12K 520 min 420 min 26 min -20°C 100 J
        -40°C 50 J
        +20°C 160 J
        ± 0°C 140 J
EM12K 550 min 460 min 22 min -20°C 120 J
        -40°C 70 J
        +20°C 160 J
        ± 0°C 140 J
EA2 - A2 550 min 470min 22 min -20°C 100 J
        -40°C 47 J
        +20°C 160 J
        ± 0°C 140 J
EA4 - A4 550 min 470 min 22 min -20°C 100 J
        -40°C 47 J
EB2-B2 520 min 420 min 22 min -20°C 100J
EB3-B3 640 min 530 min 22 min -20°C 100J
        +20°C 160 J
        ± 0°C 140 J
EF3-F3 640 min 550 min 22 min -20°C 110 J
        -40°C 70 J
        +20°C 160 J
        ± 0°C 140 J
EG - G 6200 min 5500 min 22 min -20°C 110 J
        -40°C 70 J
        +20°C 180 J
        ± 0°C 160 J
ENi1-Ni1 560 min 500 min 22 min -20°C 120 J
        -40°C 100 J

MECHANICAL PROPERTIES OF THE WELD METAL (RANGE) IN AS-WELDED

  UTS (MPa) YS (MPa) EL (%) CVN Impact Value
Wire (L=4D) Temp. Joules
        +20°C 160 J
        ± 0°C 140 J
ENi2-Ni2 520 min 420 min 22 min -20°C 120 J
        -40°C 100 J

REDRYING CONDITION : It is adisable to redry the flux for about 2 hours @ 300-350°C prior to use.

Grain Size : 3-20 mesh

BASICITY ACCORDING TO BONISZEWSKI : 3.5 % (Mol)/ 2.6% Wt

PACKING PARAMETERS : 25.0 Kg Flux in a Aluminium bag (Vacuum Packed)