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Classification:
AWS A5.22 E309LCbT1-1/4
Description:
Cromacore DW 309LNb is a rutile flux cored wire which deposits a low carbon, Nb-stabilised 24% Cr /
13% Ni stainless steel weld metal with a ferrite level of FN ~18. The wire operates with a very stable,
spatter free arc producing a bright, smooth weld bead surface and self-releasing slag. Cromacore DW
309LNb is used mainly for overlay welding of 2.25Cr-1Mo steels
Applications:
Overlay welding of low alloy steels.
Buffer layer on clad steel joints.
Welding positions:
Welding current:
DC+
Deposition efficiency:
87%
Shielding gas:
M21, 80% Ar + 20% CO2, 22-25 l/min.
C1, 100% CO2, 22-25 l/min.
Stick-out:
15-25 mm
Chemical composition, wt.%
Mechanical properties
Typical
Yield strength, Rp0.2%: 427 MPa
Tensile Strength, Rm: 579 MPa
Elongation, A5 36%
Impact energy, CV: 0°C•50 J
Ferrite content:
FN ~18
Approvals:
Recommended parameter range:
Deposition rate per hour:
Product data:
1,2 95951012 15 kg BS300