FL 830 ESHC

Category 
type 
High basic flux for stainless steel strip electro slag cladding.
applications 
Designed for ES strip cladding in offshore, apparatus, vessel, boilers and chemical industry.
Properties 

Ceweld®FL 830 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 830 ESHC can be used in a large variaty of travel speed ranging from 14 till 30 cm per minut due to a higher slag temperature during welding.
 

Basicity index:
Grain size:
~4,0 (acc. to Boniszewski)
18 - 60 mesh

 

classification
EN ISO 
14174: (E) SA FB 2
Suitable for 

Electro slag (ESW) cladding with stainless steel strip, 308L, 309L, 316L, 2209 Duplex, 347, 309LNb, 309LMo.

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

EQ. strip

strip/layer

C

Si

Mn

Cr

Ni

Mo

Nb

Cr. loss

Ni. loss

VS

Amps.

SA 347L

Strip

0.022

0.37

2.05

19.91

10.62

0.031

0.52

First layer

0.029

0.35

1.89

17.32

9.35

0.029

0.44

13%

12%

18 cm

1150

second layer

0.022

0.33

2.07

19.13

10.3

0.030

0.48

3.9%

2.8%

18 cm

1150

SA 309L

Strip

0.022

0.32

2.08

23.39

13.24

0.01

First layer

0.030

0.29

1.99

19.80

11.40

0.01

15%

14%

18 cm

1150

First layer

0.030

0.27

1.89

17.99

10.55

0.01

23%

20%

22 cm

1150

SA 309LNb

Strip

0.014

0.39

1.98

23.37

12.8

0.13

0.65

First layer

0.031

0.36

1.88

20.08

11.39

0.12

0.51

14%

11%

22 cm

1250

SA 309LMo

Strip

0.023

0.43

1.92

22.16

12.87

2.59

First layer

0.033

0.42

1.93

20.34

11.84

2.48

8%

8%

14 cm

650

First layer

0.035

0.45

1.94

19.59

11.35

2.42

12%

12%

18 cm

650

First layer

0.036

0.36

1.86

18.57

10.86

2.25

16%

15.6%

22 cm

1150

First layer

0.036

0.43

1.83

18.15

10.32

2.13

18%

19.8%

27 cm

1300

SA 2209

Strip

0.020

0.42

1.84

21.76

8.83

2.73

First layer

0.031

0.35

1.76

18.49

7.6

2.38

15%

13.6%

22 cm

1150

Second layer

0.024

0.38

1.86

20.77

8.61

2.76

4,5%

2,5%

22 cm

1150

SA 316L

Strip

0.009

0.27

1.74

18.52

12.63

2.82

First layer

0.026

0.24

1.64

15.92

11.37

2.58

14%

10%

22 cm

1250

second layer

0.024

0.26

1.72

17.83

12.31

2.6

3.7%

2.5%

22 cm

1200

Normal welding parameters for a 60 x 0,5 mm strip are: current 1250 A, voltage 22-24 V and travel-speed 160-270 mm/min. The stick-out is typically about 35 mm. however FL 830 ESHC can be used in a large current range. Increased current increases the deposition rate, penetration and weld metal temperature considerably. To minimise the dilution within a certain current range, the travel speed should be held at a reasonably low level and layer thickness above 4.2 mm. Within this range the dilution is less than 12%. FL 830 ESHC offers a excellent low hydrogen content due to the chemical composition and the use of pre melted raw materials.

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