Classification:
AWS A5.4
EN ISO 3581-A
E 309MoL-17
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
Mechanical properties
Welding positions:
Yield strength, Rp0.2%:
Tensile Strength, Rm:
Elongation, A5
Impact energy, CV:
Typical
Welding current:
DC+, AC OCV > 39V
Redrying temperature:
350 °C, 2h
555 MPa
680 MPa
33%
-20 °C • 50 J
Ferrite content:
FN 20 (WRC-92)
Chemical composition, wt.%
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
71