G-TECH 318R
SMAW
- AUSTENITIC STAINLESS STEELS
318
Description
Rutile coated electrode for Ti or Nb stabilized grades of Mo bearing austenitic stainless steels
Its rutile coating ensures excellent weldability in all positions, except for vertical down, and a high resistance to cracking providing smooth arc transfer. High current carrying capacity, minimum spatter formation and virtually self-cleaning slag produce a concave bead with minimal ripple as well as a smooth and clean weld profile. These electrodes are used to weld Ti or Nb stabilized grades of Mo bearing austenitic stainless steels. Niobium provides resistance to intergranular chromium carbide precipitation and thus increased resistance to intergranular corrosion.
Specifications
ISO 3581-A
E 19 12 3 Nb LR 12
AWS A5.4
E318-17
Shielding
-
Positions
PA, PB, PC, PD, PE, PF
Current
DC+, AC
Packaging Type
Carton box
Asme qualifications
F-No (QW432)
5
A-No (QW442)
8
Ferrite
3-14 FN
Pren
26.26
Chem. Comp. %
DEFAULT
C
0.03
Mn
0.9
Ni
12
Cr
19
P
0.02
S
0.02
Mo
2.2
Si
0.75
Mechanical Properties
min
variant
Tensile strength Rm MPa
510
580
Yield strength Rp0.2 MPa
320
420
Elongation A (L0=5d0) %
25
30
Impact Charpy ISO-V
-
70J @ 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
