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CEWELD® 347H is designed for welding high-carbon 18/8 steels, especially titanium- and niobium-stabilized steels such as 321H and 347H.
Main applications include catalytic crackers (also known as "cat crackers"), cyclones, transfer lines, furnace components, steam lines, superheater manifolds, and various components of gas and steam turbines. The product is widely used in petrochemical plants, the chemical industry, and power generation.
CEWELD® 347H is designed for welding high-carbon 18/8 steels, especially titanium- and niobium-stabilized steels such as 321H and 347H.
Main applications include catalytic crackers (also known as "cat crackers"), cyclones, transfer lines, furnace components, steam lines, superheater manifolds, and various components of gas and steam turbines. The product is widely used in petrochemical plants, the chemical industry, and power generation.
CEWELD® 347H has a carbon content of 0.04 to 0.08%, which gives the compound increased mechanical and structural strength at high temperatures up to approximately 800 °C.
The niobium it contains prevents intergranular corrosion, even under particularly demanding operating conditions.
For base materials with a thickness greater than 12 mm, CEWELD® 18.8.2 should be used.
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 | |
|---|---|---|---|---|---|---|
| -50°C | RT | |||||
| As Welded | 450 | 660 | 42 | 80 | 100 | HRc |
