DAIKOWM 317L

GMAW
  • AUSTENITIC STAINLESS STEELS
317L

Description

Solid wire 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
EN ISO 14343-A
G 18 15 3 L / 19 13 4 L
AWS A5.9
ER317L
Shielding
M12, M13
Positions
PA, PB, PC, PD, PE, PF, PG
Current
DC+
Packaging Type
Drums, B300, D200 and D100 spools.
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
550
Yield strength Rp0.2 MPa
300
430
Elongation A (L0=5d0) %
25
35
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
Welding Parameters
1.0 mm
1.2 mm
Ampere
160A - 220A
200A - 270A
Voltage
25V - 29V
26V - 30V
Packaging
Ø 0,8÷1,6mm
Ø 0,8÷1,6mm
Packaging Type
Drums, B300, D200 and D100 spools.
Drums, B300, D200 and D100 spools.
Description

Application

This consumable is specifically designed for welding 317/317L austenitic stainless steels. It proves ideal for situations of extreme corrosion, typical of the chemical sectors, flue gas desulfurization, seawater desalination, and in particular, the paper, pulp, and textile industries. It is also widely used in marine applications, paper production, chemical processes, and food processing. Additionally, it is suitable for joining 316/316L steels, with a significant advantage: the high molybdenum content in the weld metal enhances resistance to pitting and crevice corrosion in highly corrosive environments. The material offers outstanding resistance to stress corrosion cracking and high tolerance to pitting. The service temperature ranges from -120 °C to 300 °C. Welding these molybdenum-alloyed steels requires attention. Successive passes can cause the formation of secondary phase precipitates in the weld metal. Therefore, it is recommended to limit heat input to a maximum of 1.5 kJ/mm and to keep the interpass temperature below 150 °C. Generally, post-weld heat treatment is not required, but in particular circumstances, a solution anneal between 1080 °C and 1130 °C followed by water quenching may be performed.

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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