DAIKOWS 318Si
SAW
- AUSTENITIC STAINLESS STEELS
318
Description
Solid wire for stabilised austenitic stainless steels
This composition is identical to ER316, except for the addition of niobium. Niobium provides resistance to intergranular chromium carbide precipitation and thus increased resistance to intergranular corrosion. It is also used for depositing corrosion resistance overlays and valve seat inlays on medium carbon alloy steel and to join Ti or Nb stabilized grades of Mo bearing austenitic stainless steels. Resistant to intergranular and wet corrosion up to 400°C. The higher silicon content (if compared with standard 318L) increases the welding fluidity and improve the bead appearance.
Specifications
ISO 14343-A
S 19 12 3 N
AWS A5.9
(ER318)
Shielding
DAIKOFLUX 900-W
Positions
PA, PB, PC
Current
DC/AC
Packaging Type
K415 spool and drums.
Asme qualifications
F-No (QW432)
6
A-No (QW442)
8
Ferrite
3-14 FN
Pren
27.58
Chem. Comp. %
DEFAULT
C
0.03
Mn
1.3
Ni
11.5
Cr
19
P
0.02
S
0.01
Mo
2.6
Si
0.75
Mechanical Properties
min
variant
Tensile strength Rm MPa
510
620
Yield strength Rp0.2 MPa
320
400
Elongation A (L0=5d0) %
25
30
Impact Charpy ISO-V
-
40J @ -100°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.4
mm
Ampere
300A - 400A
Voltage
27V - 33V
Packaging
Ø 2,0÷4,0mm
Packaging Type
K415 spool and drums.
