Submerged Arc Welding Technical Handbook - Esab
Submerged Arc Welding Technical Handbook - Esab
Submerged Arc Welding Technical Handbook - Esab
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OK Flux 10.50 – Electro slag flux<br />
for vertical up welding<br />
Classification flux Basicity index Density Grain size<br />
Not applicable 2.0 ~ 1.5 kg/dm 3 0.2 - 1.6 mm<br />
Slag type Polarity Alloy transfer<br />
Fluoride-basic<br />
Classification<br />
Wire<br />
Non alloying<br />
Weld metal<br />
OK Autrod EN / AWS EN / AW<br />
12.20 S2 / EM12 Not applicable<br />
12.32 S3Si / EH12K Not applicable<br />
12.34 S3Mo; S MnMo / EA4 Not applicable<br />
12.40 S4 / EH14 Not applicable<br />
Approvals<br />
ABS BV DNV GL LR TÜV DB CE<br />
OK Flux 10.50<br />
with OK Autrod<br />
12.20 x<br />
12.32 x<br />
12.34 x<br />
12.40 x<br />
Typical weld metal chemical composition (%), DC+<br />
C Si Mn Cr Ni Mo Other<br />
With OK Autrod<br />
12.20 0.1 0.1 1.0<br />
12.32 0.1 0.3 1.3<br />
12.34 0.1 0.1 1.0 0.5<br />
12.40 0.1 0.1 1.9<br />
Typical weld metal mechanical properties, DC+<br />
ReL / Rp0.2<br />
(MPa)<br />
Rm<br />
(MPa)<br />
A4 / A5<br />
(%)<br />
CVN<br />
(J at °C)<br />
AW/<br />
SR<br />
Remarks<br />
With OK Autrod +20<br />
12.20 300 420 26 70 AW welded in steel<br />
with ReL > 275 MPa<br />
12.32 450 600 30 35 AW welded in steel<br />
with ReL > 355 MPa<br />
12.34 390 540 20 50 AW welded in Mo-alloyed steel with ReL<br />
> 275 MPa<br />
12.40 360 590 17 20 AW welded in steel<br />
with ReL > 275 MPa<br />
With the ES process, the mechanical values of the weld metal are highly dependent on procedure and base material.<br />
OK Flux 10.50 is a fused, highbasic<br />
flux for electro slag<br />
welding (vertically up). In this<br />
process, resistive heating of the<br />
liquid slag melts the wire.<br />
Depositions rates of 40 kg/h<br />
are easily achievable with<br />
multi-wire systems.<br />
The flux is suitable for single<br />
and multi-wire procedures, for<br />
DC and AC welding and is<br />
used for unlimited plate<br />
thicknesses.<br />
Once the welding process<br />
begins, the OK Flux 10.50<br />
suppresses the welding arc.<br />
Water-cooled copper bars that<br />
slide vertically-up parallel to the<br />
proceeding welding process<br />
support the molten weld pool.<br />
The mechanical values of the<br />
weld metal can be influenced<br />
by the choice of the wire<br />
electrode or welding procedure.<br />
Due to the high dilution the<br />
base material also has a major<br />
influence. Electro slag welding<br />
vertically-up can be applied to<br />
a wide range of steels such as<br />
structural steels, fine-grained<br />
steels and pressure vessel<br />
steels.<br />
For more information view the Product Data Sheets or contact ESAB.<br />
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