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GEEFLUX 525W

IDENTIFICATION
GEEFLUX 525W

CLASSIFICATION
AWS/SFA 5.23 :F8P2 EB2-B2
AWS/SFA 5.23 : F8P2 EB2R-B2R
AWS/SFA 5.23 : F9P2 EB3-B3
AWS/SFA 5.23 : F9P2 EB3-B3R
AWS/SFA 5.23 :F8PZ EB8 - B8
AWS/SFA 5.23 : F8PZ EB91-B91

DESCRIPTION
A highly basic, agglomerated flux with a chemical composition and a production method, which guarantees almost neutral metallurgical relations. This flux offers low oxygen and low hydrogen potentials, which permits sub-merged-arc welding of crack-sensitive heat treatable or heat resistant low-alloy steels and high-alloy Martensitic materials.
Geeflux 525W shows good welding characteristics with smooth tie-in and weld bead appearance without slag inclusions or “tiger-tracks”, even when high inter-pass temperatures are experienced.  Slag is self-detaching, including in narrow-groove joints.

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

Wire C Mn Si S P Cu Cr Mo Sb As Ni V Nb (cb) N Al Sn
EB2- B2 0.05 - 0.15 1.2 0.8 0.03 0.03 0.35 1.00 - 1.50 0.40 - 0.65 - - - - - - - -
max max max max max
EB2R -B2R 0.05 - 0.15 1.2 0.8 0.01 0.01 0.15 1.00 - 1.50 0.40 - 0.65 0.005 0.005 - - - - - 0.005
max max max max max max max max
EB3- B3 0.05 - 0.15 1.2 0.8 0.03 0.03 0.35 2.00 - 2.50 0.90 - 1.12 - - - - - - - -
max max max max max
EB3R -B3R 0.05 - 0.15 1.2 0.8 0.01 0.01 0.15 2.00 - 2.50 0.90 - 1.12 0.005 0.005 - - - - - 0.005
max max max max max max max max
EB8- B8 0.12 1.2 0.8 0.03 0.03 0.35 8.0 - 10.0 0.80 - 1.20 - - - - - - - -
max max max max max max
EB91- B91 0.08 - 0.13 1.2 0.8 0.01 0.01 0.25 8.0 - 10.5 0.85 - 1.20 - - 0.8 0.15 - 0.25 0.02 - 0.10 0.02 0.04 -
max max max max max max -0.07 max

MECHANICAL PROPERTIES OF THE DEPOSITED WELD METAL (WITH PWHT 6900C/1 TO 6 HRS)

  UTS (MPa) YS (MPa) EL (%) CVN Impact Value
Wire (L=4D) Temp. Joules
EB2 550 min 480 min 22 - 28 - 20°C 50 - 100
EB2R 560 min 540 min 17 min -20°C 54 min
EB3 620 min 540 min 17 min - -
EB3R 620 min 540 min 17 min -20°C 54 min
EB8 550 - 690 480 - 580 20 - 28 - -
EB9 550 min 480 min 20 min - 20°C 47 min


CHARACTERISTICS CHEMCIAL CONSTITUENTS

Al2 + MnO CaO + MgO SiO2 + TiO2 CaF2
24.9 29.8 18.8 21.5

CURRENT CARRYING CAPACITY : Upto 900A DC using one wire.

* DIFFUSIBLE HYDROGEN CONTENT H5

Determined in deposited metal according to the method described in ISO 3690.

TYPE OF CURRENT DC : Redrying conditions 300-350°C.

PACKING PARAMETERS : 25.0 kg in a polythene lined bags.

WIRE SIZES: 1.6 mm, 2.0 mm, 2.4/2.5 mm, 3.15 mm, 4.0 mm.