Classification:
AWS A5.4
EN ISO 3581-A
~E309Nb-15
E 23 12 Nb B 42
Description:
Cromarod B309LNb is a basic flux coated electrode primarily intended for depositing the first buffer
layer on mild or low alloyed steels, prior to overlaying with Cromarod 347 or Cromarod B347. The
over-alloyed deposit compensates the effect of dilution with the base material, enabling a full 347 type
overlay to be achieved in the second layer.
Coating type:
Basic
Ferrite content:
FN 13 (WRC 92)
Welding positions:
Welding current:
DC+
Redrying temperature:
350 °C, 2h
Chemical composition, wt.%
Product data
3,2
350
74693200
80-120
24
0,67
40
1,1
4,0
350
74694000
100-160
25
0,67
27
1,8
5,0
450
74695000
180-220
26
0,68
19
2,8
70