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CEWELD® 347Si 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.
CEWELD® 347Si 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.
CEWELD® 347Si 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 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).
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
| Heat Treatment |
RP0,2 (MPa) |
Rm (MPa) |
A5 (%) |
Impact Energy (J) ISO-V | Hardness | |
|---|---|---|---|---|---|---|
| -196°C | -110°C | |||||
| As Welded | 420 | 590 | 35 | 50 | 150 | HRc |
