Product detail | Gee Website

GEEFLUX 591 X GEESAW EB91

IDENTIFICATION
GEEFLUX 591 X GEESAW EB91

CLASSIFICATION
AWS/SFA 5.23: F9PZ EB91-B91

Description:

GEEFLUX 591 X GEESAW EB91 is designed for submerged arc welding. Preheat and interpass temperatures of not less than 200 °C during welding.
GEEFLUX 591 is agglomerated highly basic flux designed for welding chrome-moly steels including grade P91. Metallurgical behavior of the flux is neutral. Damp flux must be redried at 400-450°C/for 2 to 3 hr.

Weld Metal Analysis

Wire

Nb (cb)

EB91

0.07-0.13

1.25 max

0.30max

0.01 max

0.10 max

8.5-10.5

0.85-1.15

1.0 max

0.15-0.25

0.02-0.10

0.03-0.07

0.04 max

EB91+ Geeflux 591

0.07-0.13

1.25 max

0.15-0.30

0.010 max

0.10 max

8.0-10.50

0.85-1.20

0.03-0.10

1.0 max

0.15-0.25

0.03-0.07

0.04 max

0.005 max

Basicity according to Boniszewski: 2.6 and 2.9

Mn+Ni in the weld metal: 1.20 max

Nitrogen in the weld metal: ≥ (0.5×Aluminum content + 0.03%) minimum.

Hardness of the weld metal as well as HAZ: 195 HV to 320 HV

Diffusible Hydrogen: Max 4 ml/100 grams of the weld metal.

Mechanical properties of the deposited weld metal (PWHT 750°C for 2 hrs min)

Wire

UTS (MPa)

YS (MPa)

EL (%)

(L=4D)

CVN Impact Value at +20°C

Temp

Joules

EB 91

630 min

540 min

17 min

27 min

Typical Applications:

Welding of A 387 grade 91 & equivalent grades of chrome-moly steels.
For welding of P91 alloyed steel.

Packing: 25.0 Kg. flux in polythene lined bags.