Cromaflux 380
Classification
EN ISO 14174-A S F CS 2 DC H5
Flux for submerged arc welding
Description
Cromaflux 380 is a fused, calcium-silicate flux intended for use with Ni-base wires where it provides
excellent slag detachability, even in restricted joints, and clean, bright deposit finish with low bead
profile and smooth tie-in. Cromaflux 380 is also suitable for use in combination with austenitic and
duplex stainless steel wires for high speed fillet welding, using the single or twin-arc process, or where
welding at the lower current range is required, e.g. thinner material. Being non-hygroscopic (fused), it
can further be used to weld low alloy-high strength steels where very low hydrogen levels are critical.
Cromaflux 380 is for use on DC only and is suitable for butt welding 9% Ni steels in combination with
Cromasaw 625, butt welding with alloy 59 and alloy C276 wires, cladding with Ni-base wires, high
productivity fillet welding with austenitic and duplex stainless steel wires and power generation fin-tube
walls in P91 steel.
Approvals:
Contact Business Unit Wire
Flux type: Calcium-silicate
Basicity index: 1.3
Grain size: EN 760 1-16
Flux density: 1.5kg/dm3
Product data:
Welding current: DC
Product code
Packaging
Redrying temperature: 150-250°C, 2h to
remove surface moisture for critical use
9798-0001
20kg plastic bag
Typical all-weld metal chemical composition, wt.%:
Wire
Cromasaw 82
Cromasaw 625
Cromasaw 316L
Cromasaw Duplex
Cromasaw 312
C
0.02
0.02
0.02
0.02
0.10
Si
0.3
0.3
0.7
0.8
0.8
Mn
2.3
0.3
1.3
1.3
1.3
Cr
21.3
21.3
18.2
22.0
29
Ni
bal.
bal.
11.3
8.6
9
Mo
9.0
2.6
3.0
Others
Nb 2.1, Fe 0.5
Nb 3.2, Fe 0.4
N 0.13
8
45
60
* FN WRC-92
Typical all-weld metal mechanical properties:
Wire: Cromasaw
Yield strength, Re, MPa
Tensile strength, Rm,MPa
Elongation A5, %
Impact energy CV, J:
+20°C
-20°C
-40°C
-60°C
-196°C
82
380
630
45
82
150
625
450
720
40
625
150
316L
390
570
38
316L
95
100
70
40
237
Duplex
620
780
28
Duplex
90
85
80
65
FN *
312
650
800
24
312
30