DAIKOWT 316LSi

GTAW
  • AUSTENITIC STAINLESS STEELS
316L

Description

Solid rod for Mo bearing austenitic stainless steels
The presence of molybdenum provides creep resistance at elevated temperatures and pitting resistance in a halide atmosphere. This alloy has a low carbon content which makes it particularly recommended where there is a risk of intergranular corrosion. These consumables are used for Mo bearing austenitic stainless steels with 1.5 ÷ 3 Mo. 316 steels are used for their good resistance to pitting, many acids and general corrosion. The higher silicon content (if compared with standard 316L) increases the welding fluidity and improve the bead appearance.
Specifications
ISO 14343-A
W 19 12 3 L
AWS A5.9
ER316LSi
Certifications
CE
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

2-10 FN

Pren

27.08

Hardness

200HV - 220HV
Chem. Comp. %
DEFAULT
C
0.015
Mn
1.4
Ni
12.8
Cr
18.5
P
0.015
S
0.01
Mo
2.6
Si
0.8
Cu
0.15
Mechanical Properties
min
variant
Tensile strength Rm MPa
510
580
Yield strength Rp0.2 MPa
320
430
Elongation A (L0=5d0) %
25
40
Impact Charpy ISO-V
-
60J @ -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
Description

Application

These consumables are meticulously crafted for Mo-bearing austenitic stainless steels with a Mo content ranging from 1.5% to 3%. They exhibit compatibility with Ti or Nb stabilized versions, as well as nitrogen-bearing or free machining variations of these alloys. Primarily designed for applications involving Type 316/316L steels, these consumables are highly valued for their exceptional resistance to pitting, acids, and general corrosion. It is important to note that these consumables are not recommended for use in elevated temperature structural applications with 316/316H steels. For cryogenic applications at -196°C, it is advisable to refer to 316LCF. The welding process is facilitated without the need for preheating. It is essential to maintain a maximum interpass temperature of 250°C, and post-weld heat treatment (PWHT) is not required..

Alloy Type

316L Mo bearing austenitic stainless.

Microstructure

Austenite with a controlled level of ferrite, normally in the range 2-10FN depending on the application.

Materials


EN W.Nr.: 1.4404 (X2CrNiMo 17-12-2), 1.4401 (x 5CrNiMo 17 12 2), 1.4436 (X 3 CrNiMo 17 13 3), 1.4406 (X 2 CrNiMoN 17 11 2), 1.4429 (X 2 CrNiMoN 17 13 3), 1.4408 (GX5CrNiMo19-11-2), 1.4437 (GX6CrNiMo18-12).
ASTM: 316L, 316, 316LN, CF3M, CF8M.
UNS: S31603, S31600, S31653.

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