Type
Filler metal for welding stabilized stainless austenitic steels 18/8. ( Type 19 9 Nb, 347Si )
classification
AWS
A 5.9: ER347Si
EN ISO
14343-A: W 19 9 Nb Si
W.Nr.
1.4551
Applications

CEWELD® 347Si Tig is designed for welding 18/8 steels, particularly types 321 and 347. It is also compatible with non-stabilized grades such as 304/304L. Typical operating temperatures range from -100 °C to approximately 400 °C. Main application areas include the food processing industry, breweries, pharmaceutical plants, construction, general engineering, and nuclear technology.

Type
Filler metal for welding stabilized stainless austenitic steels 18/8. ( Type 19 9 Nb, 347Si )
Applications

CEWELD® 347Si Tig is designed for welding 18/8 steels, particularly types 321 and 347. It is also compatible with non-stabilized grades such as 304/304L. Typical operating temperatures range from -100 °C to approximately 400 °C. Main application areas include the food processing industry, breweries, pharmaceutical plants, construction, general engineering, and nuclear technology.

Properties

CEWELD® 347Si Tig is suitable for low-temperature applications where a low carbon content and controlled ferrite content are recommended. This is demonstrated by its excellent impact strength values ​​of ~150 J at -50 °C (>47 J down to -196 °C). CEWELD® 347Si can be welded without preheating at a maximum interpass temperature of 250 °C. Post-weld heat treatment (PWHT) is not necessary. However, CEWELD® 347Si Tig is not recommended for high-temperature structural components where a carbon content between 0.04% and 0.08% is required for creep resistance. In this case, welding consumables from the 347H series are recommended (see CEWELD® 347H Tig).

Classification
AWS
A 5.9: ER347Si
EN ISO
14343-A: W 19 9 Nb Si
F-nr
6
FM
5
W.Nr.
1.4551
Suitable for

ISO 15608: 8.1 / TüV Groupe 29 (+22+21) / E347, 19 9 Nb, 1.4551

1.4541, 1.4550, 1.4552 1.4319, 1.4306, 1.4306, 1.4301, 1.4303, 1.4308, 1.4310, 1.4312, 1.4878 (1.4000, 1.4001, 1.4002, 1.4003, 1.4006)

X 6 NiTi 18 10, X 6CrNiNb 18 10, G-X 5CrNiNb 18 9, X 5CrNi 18 7, X 2CrNi 19 11, G-X 2CrNi 18 9, X 5CrNi 18 10, 

X 5CrNi 18 12 G-X, 6CrNi 18 9, X 12CrNi 17 7, G-X 10CrNi 18 8 

AISI: 321, 347, ~304, ~304L

 

Approvals
TÜV: TÜV (12392.00), CE
Welding positions
PA
PB
PC
PD
PE
PF
PG
Redrying
Not required
Gas acc. EN ISO 14175
I1
Analysis
C Si Mn P S Cr Ni Mo Nb N W Cu
0.04 0.7 1 0.007 0.01 20 10 0.05 0.4 0.07
Mechanical Properties
Heat
Treatment		 RP0,2
(MPa)		 Rm
(MPa)		 A5
(%)		 Impact Energy (J) ISO-V Hardness
-196°C -110°C
As Welded 450 610 35 50 150 HRc
Product sheet
declaration of performance
SDS
Product sheet
Ask quotation
SDS