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Description
Cromaux 380 is a fused, calcium-silicate ux intended for use with Ni-base wires where it provides
excellent slag detachability, even in restricted joints, and clean, bright deposit nish with low bead
prole and smooth tie-in. Cromaux 380 is also suitable for use in combination with austenitic and
duplex stainless steel wires for high speed llet 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.
Cromaux 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 llet welding with austenitic and duplex stainless steel wires and power generation n-tube
walls in P91 steel.
Flux type: Calcium-silicate
Basicity index: 1.3
Flux density: 1.5kg/dm3
Welding current: DC
Redrying temperature: 150-250°C, 2h to
remove surface moisture for critical use
Cromaux 380
Flux for submerged arc welding
Classication
EN ISO 14174-A S F CS 2 DC H5
Approvals:
Contact Business Unit Wire
Grain size: EN 760 1-16
Product data:
Product code Packaging
9798-0001 20kg plastic bag
Typical all-weld metal chemical composition, wt.%:
Wire C Si Mn Cr Ni Mo Others FN *
Cromasaw 82 0.02 0.3 2.3 21.3 bal. Nb 2.1, Fe 0.5
Cromasaw 625 0.02 0.3 0.3 21.3 bal. 9.0 Nb 3.2, Fe 0.4
Cromasaw 316L 0.02 0.7 1.3 18.2 11.3 2.6 8
Cromasaw Duplex 0.02 0.8 1.3 22.0 8.6 3.0 N 0.13 45
Cromasaw 312 0.10 0.8 1.3 29 9 60
* FN WRC-92
Typical all-weld metal mechanical properties:
Wire: Cromasaw 82 625 316L Duplex 312
Yield strength, Re, MPa 380 450 390 620 650
Tensile strength, Rm,MPa 630 720 570 780 800
Elongation A5, % 45 40 38 28 24
Impact energy CV, J: 82 625 316L Duplex 312
+20°C 150 150 95 90 30
-20°C 85
-40°C 80
-60°C 65
-196°C 100 70 40