Classification:
EN ISO 14343
AWS A5.9
G 23 12 LSi
ER309LSi
Description:
Cromamig 309LSi deposits a 23% Cr / 13% Ni austenitic stainless steel weld metal with a ferrite
content of about FN 11. The high alloy level and high ferrite content enables the weld metal to tolerate
dilution from carbon and low alloy steels without hot cracking. The higher silicon content gives
better arc stability and weld metal flow which improves bead appearance, particularly when dip
transfer welding.
APPLICATIONS:
– Buffer layers on mild and low alloy steels prior to overlaying with MIG/TIG 308L.
– Joining of clad steels and dissimilar joints between stainless and mild or low alloy steels.
– Welding of similar composition, 309L type, stainless steels.
– Joining of ferritic-martensitic stainless steels.
Welding current:
DC+
Mechanical properties
Shielding gas:
M12, Ar + 2% CO2, 16-21 l/min
M13, Ar + 1-3% O2, 16-21 l/min
Yield strength, Rp0.2%:
Tensile Strength, Rm:
Elongation, A5
Impact energy, CV:
Typical
Wire composition, wt.%
450 MPa
650 MPa
35%
20°C • 130 J
–120°C • 60 J
Ferrite content:
FN 11
Approvals:
TüV
Product data:
Diam. Product code
mm
0,8
1,0
1,2
98052008
98052010
98052012
Spool weight
15 kg S300
15 kg S300
15 kg S300
60-100
75-140
130-160
155
18-21
18-21
18-21
150-170
170-200
175-250
24-26
26-28
26-28