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Classification:
AWS A5.4
~E309Nb-15
EN ISO 3581-A 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
Welding positions:
Welding current:
DC+
Redrying temperature:
350 °C, 2h
Chemical composition, wt.%
Ferrite content:
FN 13 (WRC 92)
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