Classification:
AWS A5.4
EN ISO 3581-A
E309L-15
E 23 12 L B 42
Description:
Basic coated electrode type 309L for dissimiliar joint welding, buffer layers and surfacing applications.
Coating type:
Basic
Mechanical properties
Welding positions:
Yield strength, Rp0.2%:
Tensile Strength, Rm:
Elongation, A5
Impact energy, CV:
Typical
Welding current:
DC+
Redrying temperature:
350 °C, 2h
Ferrite content:
FN 10 (WRC 92)
Chemical composition, wt.%
470 MPa
580 MPa
35%
-50 °C • 60 J
Corrosion resistance
As Cromarod B309L is usually used for buffer
layers and dissimilar joints,
corrosion resistance is of less importance. Two
layers on mild steel is
about equivalent to 304L type material
Scaling temperature:
Approx. 1000 °C in air.
Approvals:
CE
Product data
2,5
300
74662500
50-80
23
0,67
83
0,80
3,2
350
74663200
80-120
24
0,67
41
1,15
4,0
350
74664000
100-160
25
0,67
27
1,85
4,0
450
74664045
100-150
25
0,67
21
1,85
69