Classification:
EN ISO 14343-A
23 7 N L
Description:
Cromamig LDX is designated for MIG welding of all lean duplex materials, i.e. molybdenum free
duplex grades such as 4062, 4162 and 4362.
The product ensures a weld metal with a high strength and medium corrosion resistance, compatible
with the base material. It also provides a smooth bead appearance with minimal spatter and a slag
easy to remove.
Applications:
For applications with EN 1.4062, EN 1.4162 (ASTM S32101) or EN 1.4362 (ASTM S32304) base
materials. The steels are mainly used in civil engineering, storage tanks, containers etc.
'
Welding current:
DC+
Mechanical properties
Shielding gas:
M12, Ar + 2% CO2, 16-21 l/min
I3, Ar + <30% He, 20-25 l/min
Yield strength, Rp0.2%:
Tensile Strength, Rm:
Elongation, A5
Impact energy, CV:
Typical
Approvals:
N/A
570 MPa
770 MPa
25 %
20°C • 170 J
-46°C • 110 J
Ferrite content:
35-70%
Corrosion resistance
General corrosion
Thanks to its high Cr content (> 23%) the
Cromamig LDX allows welds with a general
corrosion resistance at least equal to the one of
the plates on which it is used for welding, in
particular the 4062 grade with 22% Cr and the
4162 grade with 21% Cr.
Pitting corrosion
For the 6%FeCl3 medium (ASTM G48A
standardised test), the critical pitting temperature
of the above-described welded joint is determined,
by calculation, to 16°C, i.e. 10°C above the level
measured for a base metal of the 304L/1.4307
type and at the same level as that of a base metal
of the 1.4362 type.
Intergranular corrosion
As all the low C Duplex grades, in the as-solidified
condition, the
Cromamig LDX does not exhibit, on duplex welded
joint, any intergranular precipitation likely to cause
intergranular corrosion phenomena.
Product data:
Diam. Product code
mm
1,2
98152012
Spool weight
15
160