DAIKOWT 318Si
GTAW
- AUSTENITIC STAINLESS STEELS
318
Description
Rod for stabilized austenitic stainless steels
The chemical composition of this rod is identical to that of 316, with the exception of the addition of niobium. Niobium prevents chromium carbide precipitation and improves resistance to intergranular corrosion. It is also used for depositing corrosion-resistant layers and inserts for valve seats on medium carbon alloy steel, as well as for joining austenitic stainless steels containing molybdenum stabilized with titanium or niobium. It withstands intergranular and wet corrosion up to 400 °C. The higher silicon content compared to standard 318L improves the welding flow and bead appearance.
Specifications
EN ISO 14343-A
W 19 12 3 N
AWS A5.9
(ER318)
Shielding
I1
Positions
PA, PB, PC, PD, PE, PF
Current
DC-
Packaging Type
5kg carton tube
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 @ -196°C
Impact Charpy ISO-V
-
-
Welding Parameters
1.6
mm
2.4
mm
Ampere
80A - 100A
110A - 160A
Voltage
-
-
Packaging
Ø 1,0÷4,0 mm
Ø 1,0÷4,0 mm
Packaging Type
5kg carton tube
5kg carton tube
