Technical Handbook

Strip cladding
Fluxes and strips for submerged arc and
electroslag strip cladding

Rev.1/09 2011

STRENGTH THROUGH COOPERATION

 Contents
page

ESAB - One solution - one supplier 3 DISCLAIMER

Strip cladding processes 4 Whilst all reasonable efforts have been made to ensure the
Deposition rate of electroslag strip cladding 6 accuracy of the information contained in this handbook at the
ESW strip cladding of valves for petrochemical plants 8 time of going to press, ESAB gives no warranty with regard to its
ESW Inconel strip cladding 9 accuracy or completeness. It is the responsibility of the reader to
Combinations for SAW and ESW strip cladding 10 check the accuracy of the information contained in this
Fluxes and strips for SAW and ESW strip cladding 12 handbook, read product labels and equipment instructions and
Fluxes for SAW strip cladding 13 comply with current regulations. If the reader is in any doubt with
Fluxes for ESW strip cladding 16 regard to the proper use of any technology they should contact
Flux and strip packages 18 the manufacturer or obtain alternative expert advice. ESAB
Strip cladding heads 19 accepts no responsibility or liability for any injury, loss or damage
World leader in welding and cutting incurred as a result of any use or reliance upon the information
technology and systems. 20 contained in this handbook.

2
ESAB - One solution - one supplier

This brochure presents an overview of Both proceses are characterised by a high

ESABs product range of strip cladding deposition rate and low dilution. They are
consumables. ESAB can offer a complete suitable for surfacing flat and curved objects
technical solution including power sour- such as heat exchangers, tubes, tube sheets
ces, equipment, strips and fluxes as well as and various pressure vessels.
process and metallurgical know-how for strip
cladding. Submerged arc welding (SAW) is the more
frequently used, but if higher productivity and
We supply strip electrodes and suitable restricted dilution rates are required, then
fluxes for almost all demanding applications, electroslag welding (ESW) is recommended.
for example for the chemical, petrochemical,
nuclear and pulp and paper industries and
also repair and maintenance.

Two cladding processes

ESAB can offer the two most productive
systems for surfacing large components
which are subjected to corrosion or wear.
These are submerged arc and electroslag
cladding, using a strip electrode.

3
 Strip cladding processes

Strip feeding

Current supply
with jaws

Liquid slag
Soldified slag
Flux

Weld deposit Base material

Figure 2: Submerged arc strip cladding

SAW strip cladding tive slag. There is no arc between the strip
The well-known SAW method has been electrode and the parent material. The heat
widely used with strip electrodes since generated by the molten slag melts the
the mid-1960s. A strip electrode, normally surface of the base material, and the edge of
measuring 60 x 0.5 mm or 90 x 0.5 mm, is the strip electrode is submerged in the slag
used as the (usually positive) electrode and and flux.
an electric arc is formed between the strip
and the workpiece. Flux is used to form a The penetration achieved with ESW is less
molten slag to protect the weld pool from than that with for SAW because the molten
the atmosphere and helps to form a smooth slag pool is used to melt the strip and some
weld bead surface. of the parent material. The temperature of
the slag pool is about 2300°C, making it
ESW strip cladding necessary to water-cool the contact jaws.
Electroslag strip cladding is a development
of submerged arc strip cladding which has ESW uses higher welding currents than SAW
quickly established itself as a reliable high strip cladding so the welding heads used are
deposition rate process. ESW strip cladding more heavy duty.
relates to the resistance welding processes The following shows the features of ESW
and is based on the ohmic resistance compared with the strip cladding process.
heating of a molten electrically conduc-

4
 Strip feeding

Current supply with

water cooled trailing
jaw

Liquid slag
Soldified slag
Flux

Weld deposit Base material

Figure 3: Electro slag strip cladding

• Increased deposition rate of 60% to 80%. increases resistance to porosity. Oxides

• Only half of the dilution (10%–15%) from can rise easier out of the molten pool to the
the base material due to less penetration. surface; resulting in a metallurgically cleaner
• Lower arc voltage (24–26 V). weld metal which is less sensitive to hot
• Higher amperage and current density cracking and corrosion.
(About 1000–1250 A with strips of 60
mm width, corresponding to 33–42 A/ Fluxes for ESW
mm ). Specially developed fluxes for high
2
The ESW-process requires a slag pool with
productivity purposes can be welded with an ohmic resistance behaviour. In
amperage in excess of 2000 A which comparison to SAW cladding the electrical
corresponds to a current density about 70 conductance must be higher to avoid arc
A/mm . 2
flash, which is a disturbance of the process.
• Increased welding speed (50%–200%), The composition of the welding flux
resulting in a higher area coverage in m /h.
2
influences the conductivity, the solidification
• Comparable heat input. range and the viscosity of the molten slag.
• Lower flux consumption (about 0.5 kg/kg To increase the cladding speed at cor-
strip). responding high welding currents, it is
• The solidification rate of the ESW weld necessary to use fluxes with high electrical
metal is lower, aids de-gassing and conductivity and low viscosity.

5
 Deposition rate of electroslag
strip cladding

The electroslag strip cladding method was The unique ESAB OK Flux 10.14 is a high
developed in the early seventies to increase basicity flux used with the electroslag
productivity by increasing the deposition rate process, designed for single-layer or multi-
and decreasing the dilution compared with layer cladding in combination with austenitic
the SAW process. strips at very high deposition rates using
high power intensity (up to 45 cm/min with
Due to the properties of ESW often only one 60 x 0.5mm strip).
layer is needed to fulfill the cladding
requirements and further the consumption of With the 60 x 0,5 mm strip, the most
consumables is significantly reduced. common size, welding currents up to 2300
A can be used. The difference in deposition
ESW can be advantageously used for the rate between the methods is illustrated in
productive cladding of a second layer, when the diagram below.
the two layer technology is demanded. The
first layer, usually a buffer layer, can be
deposited with either SAW or ESW.

Deposition rate - SAW / ESW

(kg/hr)
50,0

45,0

40,0 SAW/DC-

SAW/DC+
35,0
ESW/DC+

30,0

25,0

Deposition rate (kg/h)

20,0

15,0

10,0

5,0
600 800 1000 1200 1400 1600 1800 2000 2200 2400

Amperage (A)

6
 Deposition rate table
Combination OK Flux 10.05/ OK Flux 10.10/ OK OK Flux 10.14/ OK Band
OK Band 347 SAW Band 309LNb ESW 309LNb High speed ESW
Strip [mm] 60 x 0.5 60 x 0.5 60 x 0.5

Welding process SAW ESW ESW

Current [A] 750 1250 2100

Voltage [V] 26 24 25

Travel speed [cm/min] 10 18 40

Current density [A/mm2] 25 42 70

Arc yes no no

Heat input [kJ/mm] 11.7 11.25 8.6

Bead height [mm] 4.5 4.5 4.5

Bead width [mm] 65 68 65

Dilution [%] 18 9 18

Number of layers 2 (Buffer OK Band 309L) 1 1

Deposition rate [kg/hour] 14 22 51

Flux consumption [kg/kg strip] 0.8 0.6 0.6

Cladding equipment for automation

ESAB supplies various options for

strip cladding operations:

• CaB 300/460/600 as carrier.

• Welding control by PEH and PLC or only
sequence control by PLC for step and
spiral cladding.
• Strip cladding heads for SAW and ESW.
• Compact heads for small ID objects.
• Feed motors air cooled or water cooled.
• Holders for heads providing easy
set-up and adjustment
for circumferential or
longitudinal cladding.
• Manual or automatic­
height and side
control (joint tracking).

7
 ESW strip cladding of valves for
petrochemical plants

Wherever chemical or petrochemical plants • single layer: OK Flux 10.10/OK Band

exist, pipes and valves are needed to OK Band 309LMo ESW.
transport fluids or gas and control flows. • double layers: OK Flux 10.10/OK Band
Over the last decade, the use of noble 309LMo ESW for the first pass and OK
materials for the entire valve has shifted to Flux 10.10/OK Band 316L for the second
the cladding of a forged or cast CMn steel pass.
load-bearing bodies with a resistant alloy.
The quality of the facing varies with the valve The flux/wire combination used for ESW
application. In the case of valves for strip cladding with final Inconel 625
transporting gas, the final layer is grade 316 composition is:
stainless steel, as it is only subject to • OK Flux 10.11/ OK Band NiCrMo3. This
corrosion, whereas a final layer of Inconel combination ensures optimum results in
625 is a common choice when crude oil terms of analysis and surface appearance
mixed with sand is involved, causing both for both single and double layers.
chemical attack and abrasion.

Consumables
The flux/wire combinations used for ESW
strip cladding with 316L composition are:

8
 ESW Inconel strip cladding

SAW and ESW strip cladding are two that it was not possible to meet the Fe
options for cladding vessels with a requirements with SAW strip cladding in two
protective Inconel 625 layer. In the layers. A third layer would have been
application described here, the client’s needed, involving an extra, time-consuming
specification stipulated a minimum of two fabrication step and more expensive weld
layers and an Fe content of 5% maximum at metal. With ESW cladding, however,
the weld overlay surface and 7% maximum parameters could be found to fulfill the
at 2 mm sub surface. – the highest chemical requirements in two layers due to
requirement within the petrochemical less dilution with the parent material.
industry, covering both heat and corrosion. Welding parameters were fine-tuned and a
Since no overlay thickness was specified, welding procedure for the weld overlay of
there was the freedom to reach the final SA516 Gr. 70 (P1 Gr.2) was established and
composition in the most economic way. qualified according to ASME Sec. IX and
client specification.
Both methods were trial tested for
consumable selection and choice of
parameters. The trial tests clearly indicated

ESW cladding with OK Flux 10.11/ OK Band NiCrMo3

Trial Layer Thickness % Fe surface
1 1st 4.9mm 9.05%

2 1st 4.3mm 10.41%

3 1st 4.0mm 11.91%

1st & 2nd 8.0mm 3.28%

4 1st 3.1mm 11.93%

1st & 2nd 6.2mm 5.15%

Chemical analyses of the ESW weld overlay (%).

Inconel 625 chemistry met at 3.5mm from the fusion
line, so 2.5mm sub surface.
C Ni Cr Mo Fe
0.02 59 22 8.5 4.0

Right: ESW cladding of an Inconel 625 protective layer

onto a SA 516 Gr. 70 vessel for the desalination industry.
Welding parameters: 1050-1180A, 24-25V, 19.8-21.9cm/
min. Strip dimensions OK Band NiCrMo3: 60 x 0.5mm.

9
 Combinations for SAW and
ESW strip cladding

Alloy Process Layers Flux Strip Strip Welding parameters( 1 )

(2)
Nr. Layer 1 Layer 2 A V cm/min
Low alloy SAW 1 OK Flux 10.31 OK Band 7018 750 28 12

SAW 2 OK Flux 10.31 OK Band 7018 OK Band 7018 750 28 12

308 L SAW 2 OK Flux 10.05 OK Band 309L OK Band 308L 750 28 13

ESW 1 OK Flux 10.10 OK Band 309L ESW - 1250 24 16

ESW 2 OK Flux 10.10 OK Band 309L ESW OK Band 309L ESW 1250 24 16
(3)
SAW/ESW 2 OK Flux 10.05/10.10 OK Band 309L OK Band 308L 1250 24 32

SAW/ESW ( 3 ) 2 OK Flux 10.05/10.14 OK Band 309L OK Band 308L 1250 24 32

316 L SAW 2 OK Flux 10.05 OK Band 309L OK Band 316L 750 28 13

SAW 1 OK Flux 10.06 OK Band 309L ( 4 ) - 1125 27 26

SAW 1 OK Flux 10.06F OK Band 309L - 750 28 12

ESW 1 OK Flux 10.10 OK Band 309LMo ESW - 1250 25 16

ESW 2 OK Flux 10.10 OK Band 309LMo ESW OK Band 309LMo ESW 1250 25 16

SAW/ESW ( 5 ) 2 OK Flux 10.05/10.10 OK Band 309L OK Band 316L 1250 24 32

SAW/ESW ( 3 ) 2 OK Flux 10.05/10.14 OK Band 309L OK Band 316L 2000 26 35

347 SAW 2 OK Flux 10.05 OK Band 309L OK Band 347 750 28 13

SAW 1 OK Flux 10.05 OK Band 309LNb - 750 28 12

ESW 1 OK Flux 10.10 OK Band 309LNb ESW - 1250 25 16

ESW 2 OK Flux 10.10 OK Band 309LNb ESW OK Band 309LNb ESW 1250 24 16

ESW 1 OK Flux 10.14 OK Band 309LNb - 2300 24 40

ESW 1 OK Flux 10.14 OK Band 309LNb ( 4 ) - 2300 24 30

(5)
SAW/ESW 2 OK Flux 10.05/10.10 OK Band 309L OK Band 347 1250 24 18

SAW/ESW ( 5 ) 2 OK Flux 10.05/10.14 OK Band 309L OK Band 347 2000 26 35

2209 SAW 2 OK Flux 10.05 OK Band 2209 OK Band 2209 750 28 12

904L SAW 3 OK Flux 10.05 OK Band 385 OK Band 385 750 28 12

ESW 1 OK Flux 10.11 OK Band 385 1250 24 18

ESW 2 OK Flux 10.11 OK Band 385 OK Band 385 1250 24 18

310 MoL ESW OK Flux 10.10 OK Band 310MoL OK Band 310MoL 1250 25 18

410 NiMo SAW 3 OK Flux 10.07 OK Band 430 OK Band 430 ( 6 ) 770 25 22

430 SAW 2 OK Flux 10.03 OK Band 430 OK Band 430 750 28 12

Alloy 82 SAW 2 OK Flux 10.16 OK Band NiCr3 OK Band NiCr3 750 28 12

ESW 2 OK Flux 10.11 OK Band NiCr3 OK Band NiCr3 1200 24 25

Alloy 625 SAW 2 OK Flux 10.16 OK Band NiCrMo3 OK Band NiCrMo3 750 27 13

SAW 3 OK Flux 10.16 OK Band NiCrMo3 OK Band NiCrMo3 ( 6 ) 750 27 13

ESW 2 OK Flux 10.11 OK Band NiCrMo3 OK Band NiCrMo3 1200 24 25

Monel SAW 2 OK Flux 10.18 OK Band NiCu7 OK Band NiCu7 750 29 14

(6)
SAW 3 OK Flux 10.18 OK Band NiCu7 OK Band NiCu7 750 29 14

1)Strip dimension 60x0.5 if no other information is given.

2)Buffer layer if more than one layer is welded.
3)Results for second layer (Buffer layer cladded by SAW 750A, 28V, 20 cm/min)
4)Strip dimension 90x0.5 mm
5)Results for second layer (Buffer layer cladded by SAW 750A, 28V, 14 cm/min)
6)Second and third layer
7)For each layer

10
Chemical composition (%) FN Deposition rate
WRC Overlay thick- Typical base
(7)
C Mn Si Cr Ni Mo Nb+Ta N Other 92 ness (mm) material (kg/h) (m2/h)
0.07 0.15 0.4 0.04 0.06 0.5 - - Cu=0.02 3.9 CMn 14 0.43

0.07 0.09 0.34 0.04 0.06 0.6 - - Cu=0.02 7.0 CMn 14 0.43

0.02 1.0 0.6 19.0 10.5 - - 0.03 - ~6 8.5 2.25Cr1Mo 14 0.43

0.03 1.2 0.4 19.0 10.0 - - 0.05 - ~4 4.5 2.25Cr1Mo 23 0.6

0.02 1.2 0.5 20.0 11.0 - - 0.05 - ~7 8.6 CMn 23 0.6

0.02 1.2 0.5 19.5 9.9 - - 0.04 ~6 6.5 CMn

0.02 1.3 0.5 19.2 9.9 - - 0.05 - ~6 6.5 CMn

0.02 1.1 0.7 18.0 13.0 2.5 - 0.02 - ~7 8.5 CMn 14 0.43

0.035 0.8 0.6 18.4 11.0 2.5 - 0.05 - ~7 3 CMn 21 0.6

0.03 0.8 0.6 19.0 12.0 2.5 - 0.05 - ~7 5 CMn 16 0.45

0.02 1.1 0.4 18.0 12.5 2.8 - 0.04 - ~6 4.5 2.25Cr1Mo 23 0.6

0.02 1.3 0.5 19.0 13.0 3.0 - 0.04 - ~8 8.6 2.25Cr1Mo 23 0.6

0.025 1.3 0.6 18.0 12.0 2.0 - 0.04 - ~3 7.5 CMn

0.025 1.3 0.5 18.0 11.9 2.0 - 0.04 - ~3 7.0 CMn

0.02 1.1 0.7 19.0 10.5 - 0.4 0.03 - ~8 8.2 2.25Cr1Mo 14 0.43

0.03 1.1 0.6 19.0 10.0 - 0.4 0.04 - ~9 4.5 CMn 14 0.43

0.03 1.3 0.5 19.0 10.0 - 0.4 0.05 - ~4 4.5 2.25Cr1Mo 23 0.6

0.02 1.3 0.5 20.5 11.0 - 0.4 0.05 - ~9 8.6 2.25Cr1Mo 23 0.6

0.06 1.6 0.5 19.0 10.0 - 0.6 0.02 - ~5 5.0 CMn 31 1.3

0.04 1.7 0.4 20.0 11.0 - 0.6 0.02 - ~9 5.2 CMn 51 1.8

0.015 1.3 0.4 19.0 11.0 - 0.5 0.04 - ~6 9.0 2.25Cr1Mo

0.01 1.3 0.4 19.0 10.5 - 0.4 0.05 - ~7 8.0 2.25Cr1Mo

0.02 1.1 0.8 22.0 8.0 3.0 - 0.15 - ~35 8.2 CMn 13 0.38

0.02 1.1 0.6 19.0 24.0 4.6 - 0.06 Cu=1.3 - 12.0 CMn 14 0.43

0.02 1.4 0.5 19.0 24.0 4.3 - 0.06 Cu=1.3 - 4.5 CMn 22 0.65

0.02 1.4 0.5 20.0 25.0 4.5 - 0.06 Cu=1.4 - 8.6 CMn 22 0.65

0.02 2.8 0.4 24.0 22.0 2.0 - 0.14 - - 8.6 CMn 22 0.61

0.05 0.15 0.6 13.0 4.0 1.0 - - HB=410 - 12.0 CMn 12 0.35

0.06 0.2 0.8 16.6 0.1 - - HB=260 - 9.0 CMn 14 0.32

0.02 3.0 0.5 20.0 Balance - 2.5 - Fe=3.0 - 9.0 CMn 17 0.47

0.02 2.8 0.5 21.0 Balance - 3.2 0.01 Fe=4.0 7.0 CMn 23 0.7

0.01 1.1 0.2 21.0 Balance 8.0 2.8 - Fe=4.0 - 9.0 CMn 17 0.47

0.01 1.2 0.2 21.0 Balance 8.4 2.8 - Fe=1.7 11.5 CMn 17 0.47

0.02 0.10 0.3 21.0 Balance 8.0 3.2 - Fe=4.0 - 7.0 CMn 23 0.7

0.015 3.2 1.1 - Balance - - - Cu=26.0Fe=6.5Ti=0.3 8.0 CMn 14 0.44

0.013 3.5 1.1 - Balance - - - Cu=28.0Fe=2.4Ti=0.31 11.5 CMn 14 0.44

11
 Fluxes and strips for SAW
and ESW strip cladding

FLUX EN 760 Description

SAW
OK Flux 10.03 SA CS 2 Cr DC For strip cladding with ferritic e.g. 430 alloys strips.

OK Flux 10.05 SA Z 2 DC Standard flux for strip cladding with austenitic strips.

OK Flux 10.06 SA CS 2 CrNiMo DC For cladding with EQ309L strip (0,5x90 mm) giving 316L material in one layer.

OK Flux 10.06F SA CS 2 CrNiMo DC For cladding with EQ309L strip (0,5x60 mm) giving 316L material in one layer.

OK Flux 10.07 SA CS 2 NiMo DC For cladding with 17Cr-strip producing 14Cr 4Ni 1Mo overlay.

OK Flux 10.16 SA AF 2 DC For strip cladding and joining with Ni-base materials

OK Flux 10.17 SA AF 2 DC For strip cladding with with Ni-base materials.

OK Flux 10.18 SA CS 2 DC For strip cladding with Monel type of strips primarily with NiCu7-strip.

OK Flux 10.31 SA CS 3 Mo DC For strip cladding with unalloyed CMn-steel strips.

OK Flux 10.92 SA CS 2 Cr DC For strip cladding and joining of stainless steels.

ESW

OK Flux 10.10 (~SA FB 2 DC) Standard ES cladding flux for austenitic stainless strips. Suitable for ferritic strips also.

OK Flux 10.11 (~SA FB 2 DC) For ES high speed cladding with stainless and Ni-base strips.

OK Flux 10.12 (~SA FB 2 DC) For ES outside cladding of round objects with stainless strips.

OK Flux 10.14 (~SA FB 2 DC) For very high speed ES cladding with austenitic stainless strips.

OK Flux 10.26 (~SA FB 2 CrNiMo DC) For ES cladding with 316L strip giving 316L material in one layer.

OK Flux 10.27 (~SA FB 2 CrNiMo DC) For ES cladding with 309LMo ESW strip giving 317L material in one layer.

Strips for Submerged Arc Strip Cladding and Electroslag Strip Cladding

OK Band EN ISO AWS/SFA C Si Mn Cr Ni Mo N others FN(WRC 92)

7018 Low alloy 0.1 0.1 0.5

308L 14343-A B 19 9 L A5.9: EQ308L 0.015 0.3 1.8 20.0 10.5 0.06 12

347 14343-A B 19 9 Nb A5.9: EQ347 0.02 0.4 1.8 19.5 10.0 0.06 Nb=0.5 11

316L 14343-A B 19 12 3 L A5.9: EQ316L 0.02 0.4 1.8 18.5 13.0 2.9 0.06 8

2209 14343-A B 22 9 3 N L A5.9: EQ2209 0.015 0.4 1.5 23.0 9.0 3.2 0.15 50

309L 14343-A B 23 12 L A5.9: EQ309L 0.015 0.4 1.8 23.5 13.5 0.06 13

309LNb 14343-A B 23 12 L Nb A5.9: 0.02 0.3 2.1 24.0 12.5 0.06 Nb=0.8 22

310MoL 14343-A B 25 22 2 N L A5.9: (EQ310MoL) 0.02 0.2 4.5 25.0 22.0 2.1 0.13 0

309L ESW 14343-A B 21 11 L A5.9: 0.015 0.2 1.8 21.0 11.5 0.06 11

309LNb ESW 14343-A B 21 11 L Nb A5.9: 0.015 0.2 1.8 21.0 11.0 0.06 Nb=0.6 15

309LMo ESW 14343-A (B 23 12 2 L) A5.9: 0.015 0.2 1.8 20.5 13.5 2.9 0.06 13

430 14343-A B 17 A5.9: 0.04 0.4 0.7 17.0 0.06

NiCr3 18274 B Ni6082 (NiCr20Mn3Nb) A5.14: ERNiCr-3 < 0.1 0.2 3.0 20.0 ≥67.0 0.05 Nb=2.5, Fe≤3.0

NiCrMo3 118274 B Ni6625 (NiCr22Mo9Nb) A5.14: ER NiCrMo-3 < 0.1 0.1 0.3 22.0 ≥58.0 9.0 0.05 Nb=4.0, Fe≤2.0

NiCrMo13 18274 B Ni6059 (NiCr23Mo16) A5.14: ERNiCrMo-13 < 0.01 0.1 0.5 23.0 ≥56.0 15.5 Fe≤1.5

NiCu7 18274 B Ni4060 (NiCu30Mn3Ti) A5.14: ERNiCu-7 < 0.1 1.0 3.0 67.0 Cu=29,Ti=2.5 Fe≤2.0

12
 Fluxes for SAW strip cladding

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.03 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: SA CS 2 Cr DC
1.0 With OK Band 430 *2rd layer cladded with OK Band 430 0.5x60 mm.

EN ISO 14343-A B 17 0.06 0.8 0.2 16.6 0.1 HB=260

Density
~ 1.0 kg/dm3
OK Flux 10.03 is a neutral slightly Cr compensating agglomerated flux designed for submerged strip cladding cladding with an AWS EQ430
Grain size strip producing an overlay weld metal with hardness around 260 HB. It has good welding characteristics gives a smooth bead appearance and
0.25-1.4 mm easy slag removal. For cladding on shafts, pistons, continuous cast rolls and other parts of repair and maintenance segment or applications that
demand a ferritic or martensitic weld metal.
Slag type
Neutral

Polarity
DC+

Alloy transfer
Cr compensating

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.05 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: SA Z 2 DC
1.1 With OK Band 309L
EN ISO 14343-A
Density AWS/SFA 5.9: EQ309L
~ 0.7 kg/dm3
TÜV
Grain size With OK Band 308L* *2nd layer. First layer welded with OK Band 309L
0.25-1.6mm
EN ISO 14343-A 0.02 0.6 1.0 19.0 10.5 - 0.03 6
AWS/SFA 5.9: EQ308L
Slag type
With OK Band 347* *2nd layer. First layer welded with OK Band 309L
Slightly Basic
EN ISO 14343-A 0.02 0.7 1.1 19.0 10.5 - 0.03 8 Nb=0.35
AWS/SFA 5.9: EQ347
Polarity
DC+ With OK Band 316L* *2nd layer. First layer welded with OK Band 309L

EN ISO 14343-A 0.02 0.7 1.1 18.0 13.0 2.5 0.02 7

Alloy transfer AWS/SFA 5.9: EQ316L
none

Aluminate basic, agglomerated flux designed for submerged strip cladding with Cr, CrNi, CrNiMo stabilised stainless strips of the AWS EQ300
type and duplex. OK Flux 10.05 is ESAB standard flux for internal overlay welding on mild or low alloyed steel. It has good welding
characteristics gives a smooth bead appearance and easy slag removal.

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.06, OK Flux 10.06F C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: SA CS 2 CrNiMo DC
1.0 With OK Band 309L* *1rd layer cladded with OK Band 309L 0,5x60 mm and OK Flux 10.06F.

EN ISO 14343-A 0.035 0.6 0.8 18.4 11.0 2.5 0.05 7

Density AWS/SFA 5.9: EQ309L
~ 1.2 kg/dm3
With OK Band 309L* *1rd layer cladded with OK Band 309L 0,5x90 mm and OK Flux 10.06.
Grain size
EN ISO 14343-A 0.03 0.6 0.8 19.0 12.0 2.5 0.05 7
0.25-1.4mm AWS/SFA 5.9: EQ309L

Slag type
Neutral Neutral Cr, Ni and Mo-alloying agglomerated flux designed for submerged strip cladding at high welding speed with an AWS EQ309L strip,
producing a 316L overlay weld metal in one layer e.g. for internal overlay welding of a paper fibre digester drums.
OK Flux 10.06F is especially designed for cladding with 60 mm wide strip, OK Flux 10.06 for 90 mm wide strip.
Polarity
DC+

Alloy transfer
Cr, Ni and
Mo-alloying

13
 Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.07 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: SA CS 3 NiMo DC
1.0 With OK Band 430* *3rd layer cladded with OK Band 430 0.5x60 mm.

EN ISO 14343-A 0.05 0.6 0.15 13.0 4.0 1.0 HB=410

Density
~ 1.0 kg/dm3

Grain size Neutral Ni and Mo-alloying agglomerated flux designed for submerged strip cladding with an AWS EQ430 strip producing an overlay weld metal
0.25-1.4mm of 14Cr-4Ni-1Mo and a hardness of 370-420 HB . Especially suitable for cladding on continuous cast rolls. It produces a ferritic weld metal with
an enhanced toughness and cracking resistance during service.
Slag type
Neutral

Polarity
DC+

Alloy transfer
Ni and
Mo-alloying

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.16 C Si Mn Cr Ni Mo N FN Other
Basicity index EN 760: SA AF 2 DC
2.4
TÜV

Density With OK Band NiCrMo3* *2nd layer on mild steel

~ 1.2 kg/dm3 EN ISO 18274 0.01 0.2 1.1 21 Bal. 8 0.026 Nb+Ta=2.8
(NiCr22Mo9Nb) Fe=4.0
Grain size AWS/SFA 5.14
ER NiCrMo-3
0.25-1.4mm
With OK Band NiCr3* *2nd layer on mild steel

Slag type EN ISO 18274 0.02 0.5 3.0 20 Bal. Nb=2.5

Very High Basic (NiCr20Mn3Nb) Fe=3.0
AWS/SFA 5.14
ERNiCr-3
Polarity
DC+
OK Flux 10.16 is am agglomerated, non-alloying flux for submerged arc welding - specially designed for welding and cladding with Ni-base
Alloy transfer alloyed wires and strips. The well balanced flux composition minimises silicon transfer from the flux to the weld metal, reducing the risk of hot
None cracking. OK Flux 10.16 is suitable for submerged arc strip cladding with all grades of Ni-based strips. For chemical and petrochemical plants,
offshore construction, marine equipment, pressure vessels, storage tanks, etc.

Classifications & approvals Typical weld metal chemical composition (%), DC+*
OK Flux 10.17 C Si Mn Cr Ni Mo N FN Other
Basicity index EN 760 : SA AF 2 DC
2.7

Density With OK Band NiCrMo3* *2nd layer on mild steel

~ 1.0 kg/dm3 EN 18274 : S Ni6625 0.03 0.6 0.06 20.0 Bal. 8.0 0.04 Nb+Ta = 2.3
(NiCr22Mo9Nb) Fe = 3.5
Grain size AWS/SFA 5.14
ER NiCrMo-3
0.2-1.4mm

Slag type OK Flux 10.17 is a high basic, agglomerated flux designed for submerged arc strip cladding with all grades of Ni-based strips. OK Flux 10.17 is
Basic new ESAB flux for internal overlay welding on mild or low alloyed steel. It has very good welding characteristics gives a smooth bead appear-
ance and easy slag removal. For chemical and petrochemical plants, offshore constructions, marine equipments, pressure vessels, storage
Polarity tanks, etc
DC+

Alloy transfer
None

14
 Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.18 C Si Mn Cu Ni Ti Fe FN Others
Basicity index EN 760: SA CS 2 DC
1.0 With OK NiCu7 *3nd layer on mild steel

EN 760: SA CS 2 DC 0.013 1.1 3.5 28.0 Bal. 0.31 2.4

Density EN ISO 18274: B Ni4060
~ 1.2 kg/dm3 (NiCu30Mn3Ti)
AWS/SFA 5.14: ERNiCu-7
Grain size OK Flux 10.18 is a neutral moderately silicon alloying agglomerated flux designed for strip cladding with Monel type of strips. The flux is primarily
0.25-1.6 mm suitable for strip cladding with OK Band NiCu7 or with CuNi30 strip uses OK Band NiCu7 as buffer layer. This flux either 60mm or 90mm x 0.5mm
strips gives good welding characteristics, a smooth bead appearance and easy slag removal. For desalinaiton plants, chemical processing
Slag type industry, petrochemical industry, pressure vessels and other applications.
Neutral

Polarity
DC+

Alloy transfer
Moderately
silicon alloying

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.31 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: SA CS 3 Mo DC
1.0 With OK Band 7018* *1st layer on non alloy plate. The weld metal analysis performed under various welding conditions and up to 3 layers does not significantly change the deposit analysis.

0.07 0.4 0.15 0.05 0.06 0.5 H=2.7 ml/100 g HB=150

Density
~ 1.0 kg/dm3 OK Flux 10.31 is a neutral, agglomerated, slighltly molybdenium alloyed flux for strip cladding with unalloyed CMn-steel strips. Weld metal in
one layer on non-alloyed plate shows that the flux adds nominally about 0,4% Mo. Maximum hydrogen content is 3.0 ml/100 g of weld metal.
Grain size The flux gives very good weldability and excellent slag detachability with no slag residuals. For repair and maitenance of shafts, pistons,
0.25-1.6 mm repairing of production mistakes, buffer layers, storage tanks and others.

Slag type
Neutral

Polarity
DC+

Alloy transfer
Mo-alloying

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.92 C Si Mn Cr Ni Mo N FN Other
Basicity index EN 760: SA CS 2 DC
1.0
TÜV

Density With OK Band 308L*

~ 1.0 kg/dm3 EN ISO 14343-A 0.02 1.0 0.7 20.6 9.8 12
AWS/SFA 5.9
Grain size EQ308L
0.25-1.6mm With OK Band 347*
EN ISO 14343-A 0.02 1.3 0.7 20.6 9.5 15 Nb=0.5
Slag type AWS/SFA 5.9
Neutral EQ347

Polarity With OK Band 316L*

DC+ EN ISO 14343-A 0.02 0.9 0.7 18.5 12.3 2.8 8
AWS/SFA 5.9
Alloy transfer EQ316L
Cr
compensating *Third layer on 2.5Cr1Mo steel
OK Flux 10.92 is a neutral, agglomerated, Cr-compensating flux designed for strip cladding, butt and fillet welding of stainless and corrosion
resistant steel types with AWS ER300 types of wire. Works well on DC current for single layer and multi layer welding of unlimited plate
thickness. Good welding characteristics and easy slag removal. When used for strip cladding with austenitic stainless welding strips, OK Flux
10.92 gives a smooth bead appearance. For chemical and petrochemical plants, offshore construction, pressure vessels, storage tanks,
chemical tankers, power generation, nucleair, pulp and paper, civil construction, transport industries etc.

15
 Fluxes for ESW strip cladding

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.10 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: ~SA FB 2 DC
4.0
TÜV

Density With OK Band 309L ESW* * 1rd layer, welded on 2.25Cr1Mo steel

~ 1.0 kg/dm3 EN ISO 14343-A 0.03 0.4 1.2 19.0 10.0 0.05 4

Grain size
0.15-1.0mm With OK Band 309LNb ESW* * 1rd layer, welded on 2.25Cr1Mo steel

EN ISO 14343-A 0.03 0.5 1.3 19.0 10.0 0.05 4 Nb=0.4

Slag type
Very High Basic With OK Band 309LMo ESW* * 1rd layer, welded on 2.25Cr1Mo steel

EN ISO 14343-A: (B 23 13 3 L) 0.02 0.4 1.1 18.0 12.5 2.8 0.04 6

Polarity
DC+
High basic, agglomerated flux designed for electroslag strip cladding with the austenitic stainless strips especially produced for electroslag
process e.g. OK Band 309L ESW. It is flux for high productive strip cladding. Can be used for single or multi layer cladding. However, require
Alloy transfer
special welding head and a power source of at least 1200 A.
none

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.11 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: ~SA FB 2 DC
5.4 OK Band NiCrMo3* *1st layer on mild steel

EN ISO 18274 0.03 0.5 0.20 19.5 Bal. 8.0 Nb+Ta=3.2, Fe=9.0
Density (NiCr22Mo9Nb)
~ 1.0 kg/dm3 AWS/SFA 5.14: ER NiCrMo-3
OK Band NiCrMo3** **2nd layer on mild steel
Grain size
0.2-1.0mm EN ISO 18274 0.02 0.3 0.10 21.0 Bal. 8.1 Nb+Ta=3.2, Fe=4
(NiCr22Mo9Nb)
AWS/SFA 5.14: ER NiCrMo-3
Slag type
Very High Basic
High basic, agglomerated flux designed for electroslag strip cladding with the stainless, fully austenitic and Ni-based strips.
Can be used for single or multi layer cladding with higher welding speed.
Polarity
DC+

Alloy transfer
none

Classifications & approvals Typical chemical composition all weld metal (%)
OK Flux 10.14 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760: (~SA FB 2 DC)
4.4 With OK Band 309LNb * * 1rd layer, welded on mild steel.

EN ISO 14343-A 0.06 0.5 1.6 19.0 10.0 0.02 5 Nb=0.6

Density
~ 1.0 kg/dm3

Grain size
0.2-1.0mm High basic, agglomerated flux designed for electroslag strip cladding with the austenitic stainless strips especially strip OK Band 309LNb. It is flux
for very high productive strip cladding, up to about 35 cm/min. Can be used for single or multi layer cladding. However, require water cooled
Slag type welding head and a power source of at least 2400 A.
Very High Basic

Polarity
DC+

Alloy transfer
none

16
 Classifications & approvals Typical chemical composition all weld metal (%), DC+*
OK Flux 10.26 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760 : (~SA FB 2 CrNiMo DC)
3.0 With OK Band 316L * *1st layer, weld on mild steel

EN ISO 14343-A: B 19 12 3 L 0.03 0.2 1.2 19.0 12.8 2.7 0.06 8 Cu=0.05
Density AWSSFA 5.9 EQ 316L
~ 1.2 kg/dm3

Grain size
0.2-1.0 mm OK Flux 10.26 is high basic, agglomerated Ni-, Cr- and Mo-adding flux designed for electroslag strip cladding with ESAB OK Band 316L strips
gives 316L overlay in first layer. The flux has very good welding characteristics gives a smooth bead appearance and easy slag removal. For
Slag type chemical industry, marine applications, paper industry digesters, evaporators & handling equipments, petroleum refining equipment, duct works,
Fluoride basic water tubes and heat exchangers.

Polarity
DC+

Alloy transfer
Cr, Ni and
Mo-alloying

Classifications & approvals Typical weld metal chemical composition (%), DC+*
OK Flux 10.27 C Si Mn Cr Ni Mo N FN Others
Basicity index EN 760 : (~SA FB 2 CrNiMo DC)
3.1 With OK Band 309LMo ESW * * 1rd layer, welded on mild steel.

EN ISO 14343-A: (B 23 13 3 L) 0.03 0.2 1.0 18.8 13.2 3.4 0.04 8 Cu=0.08
Density
~ 1.0 kg/dm3

Grain size
0.2-1.0mm OK Flux 10.27 is an high basic, agglomerated Ni-, Cr- and Mo-adding flux designed for electroslag strip cladding with ESAB 309LMo ESW strips
gives 317L overlay in first layer. It has a smooth bead appearance, very good welding properties and easy slag removal. Suitable for special
Slag type applications like flue gas desulfurization scrubber systems chemical and petro-chemical processing equipments and pulp and paper plants, etc.
Fluoride Basic

Polarity
DC+

Alloy transfer
Cr, Ni and
Mo-alloying

17
 Flux and strip packages

ESAB strip electrodes are delivered in a cold

rolled condition on 25 kg or 50 kg and 100
– 200 kg coils with an inner diameter of 300
mm. The standard thickness is 0,5 mm and
widths normally 30, 60 or 90 mm.
Other coil weight or strip dimensions are
available on request.

ESAB delivers fluxes in 25 kg bags, but

some types are available in 20 kg bags.
Each bag has a polyethylene inlay to prevent
the flux from moisture pick-up from the
surrounding atmosphere. The palettes used
to transport the flux bags are also protected
against moisture by wrapping with shrink foil.

For a more robust package ESAB can sup-

ply fluxes in steel buckets containing 20 or
25 kg. These have a soft rubber band in the
lid which makes them moisture tight.

The coils and bags are labelled with all infor-

mation according to EN and AWS norms.

18
Strip cladding heads

ESAB is a traditional supplier of strip are suited for both submerged arc and
cladding heads for submerged strip electroslag cladding. Developed for use
cladding, e.g. the A6S type, and for with the ESAB A6 motor and PEH
electroslag strip cladding e.g. the control box. For all other motors, gear
ESW - S60 or ESW - S90 heads. boxes and control units it is necessary
The unique cladding heads to trial and adapt if necessary.
SAW/ESW - S60 and SAW/ESW - S90

Technical data
Type A6S ESW – S60 ESW – S90
Welding process SAW ESW ESW

Allowed strip width 30-100 mm 30-60 mm 60-90 mm

Dimension 220x400x250 mm 230x400x360 mm 300x400x400 mm

Weight 15 kg 18 kg 18 kg

Water cooling No Pressure 4-6 bar Pressure 4-6 bar

Type SAW / ESW – S60 SAW / ESW – S90

Welding process SAW/ESW SAW/ESW

Allowed strip width 30-60 mm 60-90 mm

Dimension 260x270x400 mm 300x400x400 mm

Weight 14 kg 18 kg

Water cooling Pressure 4-6 bar Pressure 4-6 bar

Magnetic steering system

The system is intended for stainless Type ESMD 300

electroslag strip cladding in order to Connection voltage 230V, 50Hz

get a more consistent and straight welding Dimension 280x370x185 mm

pool. The magnets are placed on either Weight 17 kg

side of the welding head to provide the

desired magnetic flow. This is recommended
for strips over 60 mm.

19
World leader in welding and cutting
technology and systems.

ESAB operates at the forefront of Environmental, Health & Safety

welding and cutting technology. Over Management Systems across all our
one hundred years of continuous global manufacturing facilities.
improvement in products and
processes enables us to meet the At ESAB, quality is an ongoing
challenges of technological advance process that is at the heart of all our
in every sector in which ESAB production processes and facilities
operates. worldwide.

Quality and environment Multinational manufacturing, local

standards representation and an international
Quality, the environment and safety network of independent distributors
are three key areas of focus. ESAB is brings the benefits of ESAB quality
one of few international companies to and unrivalled expertise in materials
have achieved the ISO 14001 and and processes within reach of all our
OHSAS 18001 standards in customers, wherever they are located.

ESAB Sales and Support Offices worldwide

* Includes manufacturing facilities of ESAB North America, a wholly

owned subsidiary of Anderson Group Inc.
Reg. No: XA00137520 09 2011

ESAB AB
Box 8004, SE-402 77 Göteborg, Sweden.
Phone: +46 31 50 90 00. Fax: +46 31 50 93 90.
E-mail: info@esab.se
www.esab.com