Abracrom 4462
Stainless electrode for duplex steels
Description & applications
Rutile-basic electrode with an austenitic- ferritic microstructure (duplex). The weld metal can be applied for operation temperatures up to 250°C and is resistant in chloride containing media, like sea water, against pitting corrosion as well as crevice and stress corrosion. Easy to weld in all positions, except vertical down. Stable arc, regular drop transfer, easy slag removal, finely rippled weld beads.
Main applications:
For butt welding and cladding of steels and castings with an austenitic - ferritic structure, which are used for pumps, vessels, piping systems etc. attacked by chloride containing solutions. But also for impellers and other components which require high strength combined with corrosion attack.
|
UNS |
Alloys |
EN 10088 |
Material N° |
CLI |
|
S31803 |
|
X2CrNiMoN22-5-3 |
1.4462 |
URANUS 45N |
|
S32304 |
35N |
X2CrNi23-4 |
1.4362 |
|
|
S32900 |
329 |
X3CrNiMoN27-5-2 |
1.4460 |
|
|
|
|
G-X8CrNiN26 7 |
1.4347 |
|
|
|
|
G-XCrNiMo24 8 2 |
1.4463 |
|
Classification
| AWS A 5.4 | EN ISO 3581-A | DIN 8556 |
|---|---|---|
| E 2209 - 17 | E 22 9 3 N L R 3 2 | E 22 9 3 LR 26 |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Ni | Mo | N | Fe |
|---|---|---|---|---|---|---|---|
| <0.03 | 0.9 | 0.9 | 22.5 | 9.0 | 3.0 | 0.18 | Rest |
All weld metal mechanical properties
| Rm (MPa) | Rp0.2 MPa | A5(%) | Av - ISO - V |
|---|---|---|---|
| >680 | >540 | >22 | + 20 °C > 50; - 40 °C > 37 |
Packaging data
| Dimension | 2.5x300 | 3.2x350 | 4.0x350 |
|---|---|---|---|
| Electr. / packet | 222 | 147 | 98 |
| Electr. / carton | 888 | 588 | 392 |
| Kg 1000 electr. | 18 | 34 | 51 |
| Packets / carton | 4 | 4 | 4 |
| Kg / packet | 4 | 5 | 5 |
| Kg / carton | 16 | 20 | 20 |
Amperes
| A | 50-75 | 70-100 | 90-150 |
|---|
Welding Instructions
Redrying 2-3 hours at 250-300 °C. Guide electrodes with a slight declination and weld with a short arc. Interpass temperature: <150°C.
= +
~ 70V
