DAIKOFCW 347

FCAW
  • AUSTENITIC STAINLESS STEELS
347

Description

Rutile flux cored wire for flat and horizontal position
The easy handling and the high deposition rate result in high productivity, excellent welding performance and very low spatter formation. The self-releasing slag makes cleaning and pickling easier providing together with increased travel speeds noticeable savings in time and costs. The wire shows good wetting behaviour and a finely rippled surface pattern. These Cr-Ni consumables are usually used for welding chromium-nickel stainless steel base metals of similar composition stabilized with either Nb or Ti.
Specifications
ISO 17633-A
T 19 9 Nb P
AWS A5.22
E347T0-1/4
Shielding
M21
Positions
PA, PB, PC
Current
DC+
Packaging Type
BS300 spool
Asme qualifications
F-No (QW432)
6
A-No (QW442)
8

Ferrite

3-12 FN

Pren

18.8

Hardness

84HRB
Chem. Comp. %
DEFAULT
C
0.03
Mn
1.2
Ni
10.3
Cr
18.8
P
0.025
S
0.005
Si
0.45
Mechanical Properties
min
variant
Tensile strength Rm MPa
550
610
Yield strength Rp0.2 MPa
350
440
Elongation A (L0=5d0) %
25
37
Impact Charpy ISO-V
-
80J
Impact Charpy ISO-V
-
-
Welding Parameters
1.2 mm
1.6 mm
Ampere
120A - 280A
200A - 350A
Voltage
22V - 30V
26V - 30V
Packaging
Ø 1,2÷1,6mm
Ø 1,2÷1,6mm
Packaging Type
BS300 spool
BS300 spool
347
Description

Application

Developed for welding Ti and Nb-stabilized 18Cr/8Ni stainless steel types 321 and 347, they are also suitable for unstabilized grades like 304/304L. Service temperatures typically range from -100°C to about 400°C. The applications parallel those of 308L, covering diverse sectors such as food, brewery, pharmaceutical equipment, architectural and general fabrication, and nuclear engineering. However, the 347 consumables mentioned here are generally unfit for elevated temperature structural applications where 0.04-0.08% carbon is specified for creep resistance; for such cases, consult data sheets 347H. For cryogenic uses requiring >0.38mm (15mils) Charpy lateral expansion at –196°C, select unstabilized weld metal with low carbon and controlled ferrite. No preheating requirement, a recommended maximum interpass temperature of 250°C, and no post-weld heat treatment (PWHT) necessity.

Alloy Type

347 austenitic stainless steel for joining 321 and 347 base materials.

Microstructure

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

Materials


EN W.Nr.: 1.4541, 1.4543, 1.4561, 1.4550, 1.4552 (cast).
ASTM: 321, 347, CF8C (cast).
UNS: S32100, S34700.

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