DAIKOWT 316LCF

GTAW
  • AUSTENITIC STAINLESS STEELS
316LCF

Description

Rod in 316L with controlled ferrite for cryogenic applications
The presence of molybdenum provides creep resistance at high temperatures and pitting resistance in halide atmospheres. This low carbon alloy is particularly suitable in cases with risk of intergranular corrosion. It is used for welding austenitic stainless steels containing 1.5% to 3% molybdenum. 316 steels are chosen for their resistance to pitting, many acids, and general corrosion. The controlled ferrite content in the weld metal (3–8 FN) ensures good cryogenic toughness and minimal lateral expansion down to -196 °C.
Specifications
EN ISO 14343-A
W 19 12 3 L
AWS A5.9
ER316L
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

3-8 FN

Pren

27.08

Hardness

200HV - 220HV
Chem. Comp. %
0
C
0.01
Mn
1.4
Ni
13
Cr
18.5
P
0.015
S
0.01
Mo
2.6
Si
0.5
Cu
0.15
Mechanical Properties
min
variant
Tensile strength Rm MPa
510
510
Yield strength Rp0.2 MPa
320
320
Elongation A (L0=5d0) %
25
25
Impact Charpy ISO-V
-
50J @ -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
product.packaging_types.product.packaging_types.product.packaging_types.Tubo di cartone 5kg
product.packaging_types.product.packaging_types.product.packaging_types.Tubo di cartone 5kg
Description

Application

These consumables are specifically designed for use with austenitic stainless steels containing a molybdenum (Mo) percentage between 1.5% and 3%. Among these, 316/316L steels are widely recognized for their excellent pitting resistance, along with providing significant protection against many acids and general corrosion. Electrodes with controlled ferrite for SMAW welding and cored wires have been specifically designed to operate under cryogenic service conditions. Typical applications include pipelines and vessels intended to operate at cryogenic temperatures (-196 °C), such as in the case of liquefied natural gas (LNG). These materials are not suitable for 316/316H steels intended for high-temperature structural applications. No preheating is necessary, and the maximum interpass temperature can reach 250 °C (up to 300 °C on thicker section materials). No post-weld heat treatment (PWHT) is required. To ensure optimal impact properties, it is recommended to apply heat inputs at the upper limit of the allowed ranges.

Alloy Type

Controlled ferrite 316L austenitic stainless steels for joining 316L base materials used in cryogenic applications.

Microstructure

Austenite with a controlled level of ferrite, 2-5FN (3-8FN for solid wires).

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

Welding & PWHT

Suitable for automated welding processes, ensuring consistent quality in every process.

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