G-TECH 309LMoB
SMAW
- AUSTENITIC STAINLESS STEELS
309LMo
Description
Basic coated electrode for 309Mo austenitic stainless steels
Its basic coating ensures excellent positional welding characteristics with good gap bridging ability. The addition of 2.0 to 3.0 % molybdenum increases its pitting corrosion resistance in halide-containing environments. There are no comparable base materials. The primary application for this filler metal is surfacing of CMn steel or low alloy steel to improve their corrosion resistance. 309Mo is used to achieve a single-layer overlay with a chemical composition similar to that of a 316 stainless steel. Ease of slag removal reduces post-welding cleaning operations to a minimum.
Specifications
EN ISO 3581-A
E 23 12 2 LB
AWS A5.4
E309LMo-15
Shielding
-
Positions
PA, PB, PC, PD, PE, PF
Current
DC+;
Packaging Type
Carton box
Asme qualifications
F-No (QW432)
5
A-No (QW442)
8
Ferrite
10-30 FN
Pren
32.25
Hardness
85HRB
Chem. Comp. %
DEFAULT
C
0.03
Mn
1.8
Ni
13
Cr
24
P
0.015
S
0.02
Mo
2.5
Si
0.8
Cu
0.15
Mechanical Properties
min
variant
Tensile strength Rm MPa
550
600
Yield strength Rp0.2 MPa
350
440
Elongation A (L0=5d0) %
25
32
Impact Charpy ISO-V
-
50J @ 20°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.5
mm
3.2
mm
4
mm
5
mm
Ampere
50A - 80A
80A - 110A
110A - 150A
160A - 210A
Voltage
-
-
-
-
Packaging
56 pcs/kg
28 pcs/kg
19 pcs/kg
12 pcs/kg
Packaging Type
Carton box
Carton box
Carton box
Carton box
