G-TECH 308L

SMAW
  • AUSTENITIC STAINLESS STEELS
308L

Description

Rutile-basic coated electrode for 304L austenitic stainless steels base materials
Its basic-rutile coating ensures an excellent combination of welding performance in all positions, except for vertical down, and a high resistance to cracking providing smooth arc transfer. Excellent weldability with a spatter free arc and self-releasing slag result in a very smooth bead appearance. These electrodes are used to weld 18Cr/8Ni stainless steels. Mainly applications include food industries, pharmaceutical equipment and general fabrication. Typical service temperatures are -100°C to 400°C.
Specifications
EN ISO 3581-A
E 19 9 L R 32
AWS A5.4
E308L-16
Shielding
-
Positions
PA, PB, PC, PD, PE, PF
Current
DC+, AC
Packaging Type
Carton box
Asme qualifications
F-No (QW432)
5
A-No (QW442)
8

Ferrite

3-12 FN

Pren

19.83

Hardness

76HRB
Chem. Comp. %
DEFAULT
C
0.025
Mn
0.9
Ni
9.5
Cr
19.5
P
0.02
S
0.01
Mo
0.1
Si
0.8
Cu
0.1
Mechanical Properties
min
variant
Tensile strength Rm MPa
510
520
Yield strength Rp0.2 MPa
320
320
Elongation A (L0=5d0) %
30
38
Impact Charpy ISO-V
-
60J @ 20°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.5 mm
3.2 mm
4.0 mm
5.0 mm
Ampere
50A - 80A
80A - 110A
110A - 150A
160A - 210A
Voltage
-
-
-
-
Packaging
56 pcs/kg
28 pcs/kg
19 pcs/kg
12 pcs/kg
Packaging Type
Carton box
Carton box
Carton box
Carton box
Description

Application

The 308L subfamily is specifically designed for the welding of 18/8 series stainless steels, including 301, 302, 303, and 304LN that contain nitrogen, as well as titanium-stabilized steels such as 321. The operating temperature range generally extends from -100°C to about 400°C. These consumables are ideal for a variety of applications ranging from the food sector to breweries, pharmaceutical equipment, construction and general building, to nuclear engineering. However, 308L products are not suitable for use with 304/304H steels in structural applications requiring high temperatures; for these needs, it is recommended to consult technical sheets C-10 and C-12. Similarly, for cryogenic applications (-196°C), it is advisable to refer to technical sheet B-37. No preheat is necessary and the maximum interpass temperature is set to 250°C; also, no post-weld heat treatment (PWHT) is required.

Alloy Type

308L austenitic stainless steels for joining 304L base materials.

Microstructure

Austenite with a controlled level of ferrite, normally in the range 3-12FN depending on the application.

Materials

  • EN W.Nr.: 1.4306 (X2CrNi19-11), 1.4301 (X5CrNi18-10), 1.4311 (X2CrNiN18-10), 1.4308 (X5CrNi19-10), 1.4541 (X6CrNiTi18-10), 1.4543 (X 3 CrNiCuTi 12-9), 1.4561 (X1CrNiMoTi18-13-2), 1.4550 (X6CrNiNb18-10)+
  • ASTM: 304L, 304, 304LN, CF3, CF8, 321, 347
  • UNS: S30403, S30400, S30453, S32100, S34700

Welding & PWHT

Supply of welding consumables with optimized performance for strength and durability, including special alloys for high-temperature applications.

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