DAIKOWT 317L

GTAW
  • AUSTENITIC STAINLESS STEELS
317L

Description

Solid rod for 317L austenitic stainless steels
These wires are used to weld 317/317L austenitic stainless steels. Applications include marine, papermaking, chemical process and food processing applications. Also suitable to overmatch 316/316L steels. The enhanced content of chromium, nickel and molybdenum compared to 316L ensures better resistance to general, pitting and intercrystalline corrosion in chloride containing environments. The microstructure is austenite with 5 – 10% ferrite. Intended for severe service conditions, i.e. in dilute hot acids. Not suitable for structural service above 400°C nor for cryogenic applications.
Specifications
ISO 14343-A
W 18 15 3 L / 19 13 4 L
AWS A5.9
ER317L
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

Pren

30.55

Hardness

80HRB
Chem. Comp. %
DEFAULT
C
0.015
Mn
1.5
Ni
14
Cr
19
P
0.02
S
0.01
Mo
3.5
Si
0.4
Cu
0.15
Mechanical Properties
min
variant
Tensile strength Rm MPa
480
620
Yield strength Rp0.2 MPa
300
450
Elongation A (L0=5d0) %
25
35
Impact Charpy ISO-V
-
60J @ 20°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 employed for welding 317/317L austenitic stainless steels, showcasing notable effectiveness in challenging corrosion environments prevalent in industries such as chemicals, flue gas desulfurization, seawater desalination, and especially in pulp & paper and textile sectors. Their versatile applications extend to marine, papermaking, chemical processes, and food processing. Notably, they are suitable for surpassing 316/316L steels, leveraging a higher Mo content in the weld metal to enhance pitting and crevice resistance in highly corrosive environments. These steels exhibit excellent resistance to stress corrosion cracking and maintain high pitting resistance. With a service temperature ranging from –120°C to 300°C, careful welding is essential, as subsequent passes may induce precipitates of secondary phases in the weld metal. To address this, a recommended low heat input of max. 1.5 kJ/mm and an interpass temperature of max. 150°C are suggested. Generally, post-weld heat treatment is not required, though, in specific instances, solution annealing at 1080 – 1130°C followed by water quenching can be considered.

Alloy Type

The nominal composition (wt. %) of alloy is 19.5 Cr, 14 Ni, 3.5 Mo, similar but more alloyed than ER316.

Microstructure

The fillers are fully-austenitic and slightly over-alloyed.

Materials


EN W.Nr.: 1.4436 (X3CrNiMo17-13-3), 1.4439 (X2CrNiMoN17-13-5), 1.4429 (X2CrNiMoN17-13-3), 1.4438 (X2CrNiMo18-15-4), 1.4583 (X10CrNiMoNb18-12).
ASTM: 316Cb, 316LN, 317LN, 317L, A351 CG8M, CG3M.
UNS: S31726, J92999.

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