Submerged Arc Welding Technical Handbook - Esab

OK Flux 10.47 – Fused basic flux with
excellent characteristics – solves all
your problems
OK Flux 10.47 is a fused,
aluminate-basic flux for
submerged arc welding. It has
excellent slag removal in narrow
V-joints, offers high welding
speeds and very high current
carrying capacity. It can be
used without re-drying even
when welding hydrogen cracksensitive
steels such as those
used in the offshore industry.
This is because it is non
hygroscopic due to the
manufacturing process used to
produce it.
The flux is used for single and
multi-wire procedures, for butt
and fillet welds and works
equally well on DC and AC
current. The good slag
detachability and limited
alloying of Si and Mn makes it
a good flux for multi-pass, thick
section welding.
Classification flux Basicity index Density Grain size
EN 760: SF AB 1 65 AC H5 1.3 ~ 1.2 kg/dm 3 0.2 - 1.6 mm
Slag type Polarity Alloy transfer Hydrogen
Aluminate-basic DC+, AC Slightly Si and no Mn
alloying
Flux consumption
kg flux / kg wire
Voltage DC+ AC
26 1.0 0.9
30 1.3 1.2
34 1.7 1.7
38 1.9 1.8
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
5 HDM
% Mn pick-up
from flux
% Mn in wire
0,5 1,0 1,5 2,0
Wire
Weld metal
OK Autrod EN / AWS EN / AW AWS / AW
12.20 S2 / EM12 S 35 3 AB S2 A5.17: F6A4-EM12
12.24 S2Mo; S Mo / EA2 S 42 2 AB S2Mo A5.23: F7A2-EA2-A2
OK Tubrod
15.24S S 46 5 AB T3Ni1 A5.23: F8A4-EC-G
15.00S S 38 4 AB TZ
Approvals
ABS BV DNV GL LR TÜV DB CE
OK Flux 10.47 x x
with OK Autrod
12.20 x x
15.24S IVY46M x
450 A
750 A
OK Flux 10.47 is the answer to
your welding problems. It offers
advantages in weldability over
the majority of all other fluxes.
In the offshore industry the
advantage of using the flux
without re-drying is utilised and
very much appreciated,
particularly on hydrogen cracksensitive,
thick section
applications. The required
toughness values are achieved
by welding with OK Tubrod
basic cored wires. Other
application fields include
shipbuilding, general
constructions, pressure vessels
and transport industries.
Typical weld metal chemical composition (%), DC+
C Si Mn Cr Ni Mo Other
With OK Autrod
12.20 0.04 0.3 0.9
12.24 0.04 0.4 0.9 0.5
With OK Tubrod
15.00S 0.05 0.4 1.4
15.24S 0.07 0.3 1.6 0.8
Typical weld metal mechanical properties, DC+
ReL / Rp0.2
(MPa)
Rm
(MPa)
A4 / A5
(%)
CVN
(J at °C)
AW/
SR
Remarks
With OK Autrod -20 -30 -40 -50
12.20 365 455 29 110 90 70 AW
12.24 430 520 25 70 AW CVN at - 29°C: 40 J
With OK Tubrod
15.00S 440 520 30 120 AW
15.24S 550 640 28 140 120 AW CTOD passed at -10°C
With OK Autrod
12.20 310 430 32 130 110 90 SR
12.24 400 500 26 70 SR CVN at - 29°C: 60 J
For more information view the Product Data Sheets or contact ESAB.
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