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.