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Classification:
AWS A5.4
E 309MoL-17
EN ISO 3581-A E 23 12 2 L R 32
Description:
Cromarod 309MoL is a rutile flux coated electrode which deposits a 23% Cr / 12%Ni / 2.5%Mo
austenitic stainless steel weld metal. The high alloy content and ferrite level enable the weld metal to
tolerate dilution from dissimilar and difficult-to-weld materials without hot cracking or brittle structures.
Applications:
– Dissimilar joints between stainless and mild, low alloy or medium carbon steels.
– Buffer layers on mild and low alloy steels prior to overlaying with Cromarod 316L.
– Interface runs in 316L clad steels.
– Joining of medium carbon hardenable steels e.g. armour plate..
'
Coating type:
Rutile
Welding positions:
Welding current:
DC+, AC OCV > 39V
Redrying temperature:
350 °C, 2h
Chemical composition, wt.%
Mechanical properties
Typical
Yield strength, Rp0.2%: 555 MPa
Tensile Strength, Rm: 680 MPa
Elongation, A5 33%
Impact energy, CV:
-20 °C
•
50 J
Ferrite content:
FN 20 (WRC-92)
Corrosion resistance
The corrosion resistance after surfacing carbon
steels with two layers of Cromarod 309MoL is
about the same as for 316L material.
Scaling temperature:
Approx. 1000 °C in air.
Approvals:
CE
ABS
DNV
LR
DB
RINA
TÜV
Product data
2,0 300 74342000
35-60 26 0,63 135 0,7
2,5 300 74342500
40-80 27 0,64 84 1,1
3,2 350 74343200
80-120 28 0,65 43 1,5
4,0 350 74344000
100-160 29 0,65 29 2,1
4,0 450 74344045
100-160 29 0,65 23 2,1
5,0 450 74345000
150-220 30 0,67 13 3,1