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- E BK-112
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Nickle Alloy Welding Electrode E BK 112
Nickle Alloy Welding Electrode E BK 112 is used for Shield metal Arc Welding. Excellent resistance to wear, corrosion and heat. Maintains a good hardness even at very high temperatures. Resistant to corrosion caused by acids and gases. (Good resistance to hydrochloric acid, sulphuric acid, phosphoric acid depending on concentration and temperature) Crack-free deposits with exceptional resistance to thermal and mechanical shocks. Oxidation resistant up to 1200 °C (2200 °F).
Application
Inconel 622, 625, alloy 25-6Mo, incoloy 825, dissimilar joints of nickel alloys, hastelloy Alloy C276, C22, C4, 2.4611, Typical specifications for the nickel-chromium-molybdenum base metals are ASTM, F574, B619, B622
Classification
AWS
5.11: E NiCrMo-10
EN ISO
14172: E Ni 6022 (NiCr21Mo13W3) FM6
DIN
1736: EL-NiCr21Mo14W2.4635
Typical Weld Metal Analysis %
| C | Mn | Fe | Ni | Cr | Nb | Si | W | Mo |
| 0.03% | 0.2% | 2.0% | Rem. | 21.7% | 3.30% | 0.40% | 3.0% | 13.0% |
Mechanical Properties (As Welded)
| Yield Strength |
Tensile Strength |
A
(%) |
| 500 MPa (73 ksi) |
780 MPa (113 ksi) |
>35 |
General Information
Welding process
Covered Electrode (SMAW)
Alloy Type
Ni-Base CrMoNb
Re-drying Temperature
300°C/2hours
Beads
Use stringer beads (do not weave).
Cleaning
Remove all cracks and fatigued metal by grinding
Welding Parameters
| Diameter & Length (mm) |
Current (A) |
| 2.5x300 |
60~100 |
| 3.2x300 |
90~120 |
| 4.0x350 |
120~150 |