Submerged Arc Welding Technical Handbook - Esab

OK Flux 10.63 – High impact flux
especially for creep resistant steels
OK Flux 10.63 is an
agglomerated, high-basic flux for
submerged arc welding. It is
used for multi-run welding of
creep resistant Cr-Mo-alloyed
steels when high toughness
values are required, even after
step cooling heat treatment.
It can be used for single and
multi-wire procedures, for butt
and fillet welds and works
equally well on DC and AC
current. The flux is neutral in
terms of Si and Mn alloying and
thus it is perfect for multi-layer
welding of unlimited plate
thicknesses. It is well suited for
narrow gap welding, due to
good slag detachability and
smooth sidewall blending. The
optimum voltage is at the lower
end of the voltage range. The
weld metal produced has a very
low level of impurities with a
maximum X-factor value of 15
with various wires. It has a low
oxygen content, approx.
300ppm and hydrogen levels
lower than 5ml/100g.
OK Flux 10.63 is used in the
petrochemical, chemical, power
generation and pressure vessels
industries, mainly for creep
resistant steels when the
requirements on toughness
values are high. Due to the very
clean weld metal, it is especially
suited when stringent
requirements after a step cooling
treatment need to be fulfilled.
Classification flux Basicity index Density Grain size
EN 760: SA FB 1 55 AC H5 3.0 ~ 1.1 kg/dm 3 0.2 - 1.6 mm
Slag type Polarity Alloy transfer Hydrogen
Fluoride-basic DC+ / AC No Si or Mn alloying 5 HDM
Flux consumption
kg flux / kg wire
Voltage DC+ AC
26 0.7 0.6
30 1.0 0.9
34 1.3 1.2
38 1.6 1.4
Classification
1,0
0,8
0,6
0,4
0,2
0,0
-0,2
% Si pick-up
from flux
% Si in wire
450 A
750 A
0,05 0,10 0,15 0,20 0,25 0,30
Single wire, ø 4.0 mm, DC+, 30 V, 60 cm/min
1,8
1,4
1,0
0,6
0,2
-0,2
-0,6
-1,0
% Mn pick-up
from flux
Wire
Weld metal
OK Autrod EN / AWS AWS / PWHT
13.10 SC S CrMo1 / EB2R A5.23: F8P4-EB2R-B2R
13.20 SC S CrMo2 / EB3R A5.23: F8P8-EB3R-B3R
410NiMo S 13 4
Typical weld metal chemical composition (%), DC+
(10P + 5Sb + 4Sn + As)
* X=
100
% Mn in wire
0,5 1,0 1,5 2,0
C Si Mn Cr Ni Mo Other Remarks
With OK Autrod
13.10 SC 0.08 0.2 0.8 1.2 0.5 P 0.010 X 15*
13.20 SC 0.07 0.2 0.6 2.1 1.0 P 0.010 X 15
410 NiMo 0.03 0.4 0.8 13.0 4.5 0.5
Typical weld metal mechanical properties, DC+
ReL / Rp0.2
(MPa)
Rm
(MPa)
A4 / A5
(%)
CVN
(J at °C)
AW/
SR
450 A
750 A
elements in ppm
Remarks
With OK Autrod -20 -29 -40 -62
13.10 SC 500 610 25 110 50 SR SR: 690°C / 1 h
13.10 SC 480 590 25 120 80 SR SR: 690°C / 6 h
13.20 SC 530 630 25 150 110 50 SR SR: 690°C / 1 h
410 NiMo 580 880 17 60 SR SR: 600°C / 8 h
For more information view the Product Data Sheets or contact ESAB.
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