FL 860 ESHC

Category 
type 
High basic agglomerated flux for welding Nickel based strips with the elctro slag process.
applications 
Designed for ES strip cladding in offshore, apparatus, vessel, boilers and chemical industry.
Properties 

Ceweld®FL 860 ESHC can be used with a large variety of alloys. Due to a excellent arc stability this flux is suitable for long stick out welding and standard ES cladding in case high demands on arc stability is required. Dilution of the weld metal with this flux is the lowest available on the marked today combined with a flat transition line offering more process stability in terms of chemical analysis in the overall Wight of the strip. FL 860 ESHC can be used in a large variaty of travel speed ranging from 14 till 27 cm per minut due to a higher slag temperature during welding.
 

Basicity index:
Grain size:
~4,2 (acc. to Boniszewski)
18 - 60 mesh
classification
EN ISO 
14174: (E) SA FB 2
DIN 
BF B 7 6544 DC+ 40 B-2
Suitable for 

Electro slag cladding with nickel based strip, Inconel 600, 625, 825, alloy 82 and 625, W.Nr: 2.4806, 2.4831, 2.4633, 2.4649,  Nicrofer 6025HT,  Alloy 602 CA.

welding positions: 
All weld deposit analysis on S355 (0,17C)

Alloy 625

Ampere

Travel speed

Fe

Mn

Cr

Ni

Mo

Nb

Delution

strip

(A)

cm/min

0.36

0.11

21.74

64.87

8.63

3.63

NA

First layer (LS)

700

14

4.22

0.56

20.46

63.15

8.13

3.12

4.2%

First layer (LS)

600

14

4.92

0.59

20.56

62.37

8.07

3.11

4,9%

First layer

680

14

5.74

0.4

20.71

62.06

7.95

3.05

5.5%

First layer

600

14

7.7

0.59

19.97

60.57

7.87

2.89

7.7%

First layer

1150

18

8.27

0.65

19.48

59.69

8.00

3.17

8.3%

Second layer

1100

18

2.45

0.47

20.81

64.21

8.52

3.15

2.5%

First layer

1100

20

9.61

0.65

19.12

58.73

8.06

3.06

9.6%

Second layer

1100

20

2.71

0.41

20.45

64.24

8.55

3.23

2.7%

First layer

1150

22

9.55

0.69

19.44

58.77

7.92

3.03

9.5%

Second layer

1100

22

3.13

0.47

20.78

63.69

8.43

3.11

3.1%

First layer

1200

24

14.55

0.56

18.13

55.33

7.37

2.73

13.8%

Second layer

1150

24

4.24

0.49

20.09

62.14

8.49

3.16

4.2%

First layer

1400

30

13.33

0.7

18.95

55.81

7.78

3.20

13.3%

Second layer

1400

30

4.37

0.34

20.02

63.19

8.47

3.22

4.3%

The above data is depending on plate thickness, interpass / preheat temperature, stick out and flux height. Measurement in second layer was done 2 mm below the top surface. LS* was welded with 30 x 0,5 mm strip with extended stick out to realize Fe content below 5% in the first layer. Welding directions for 60 mm strip Normal welding parameters for a 60 x 0,5 mm strip are: current 1150 A, voltage 22-24 V and travel -speed 180-220 mm/min. The stick -out is typically about 35 mm. however FL 860 ESHC can be used up to 1400 Ampere with 60 mm strip. FL 860 ESHC offers a excellent low hydrogen content due to the chemical composition and the use of pre melted raw materials. Flux consumption is extremely low due to less flux height needed during welding compare to common fluxes, (for 60 mm strip 15-25 mm only ) Thin base metal will result in a higher dilution especially at low travel speed (below 18 cm/min) . When surfacing curved objects, care must be taken to prevent the melt pool and flux from running.

redrying temperature 
If necessary for 2 hrs at 300-350°C ± 50°C (normally not needed)
packing
30 kg Metallic gasket sealed buckets