Basic electrode is suitable for joining high-temperature and similar nickel-base alloys, heat resistant |
Description
Material Type Alloy Components
High Nickel, Chromium and Molybdenum, Cobalt and other elements (Mn – Nb).
Weld Deposit Characteristics
A nickel based low hydrogen type covered electrode containing high Ni, Cr and Co, Mo, Mn, Nb. It provides excellent heat and corrosion resistance. It can be welded in all positions except vertical-down. It has a stable arc. Easy slag removal. Proper base metals are also including 2.4663 (NiCr21Co12Mo), 2.4851 (NiCr23Fe), 1.4876 (X10 NiCrAlTi 32 20), 1.4859 (GX 10 NiCrNb 32 20).
Weld Deposit Properties
Recommended Application
The weld metal is resistant to hot-cracking and is used for service temperatures up to +100°C. Scale-resistance up to +1100 °C, high temperature resistant up to +1000 °C. High resistance to hot gases in oxidizing and carburized atmospheres, e.g., gas turbines, ethylene production plants.
Standard Sizes
Diameter: 2.5/3.25/4.0/5.0 mm
Packing : 5.0 Kg Packages – 2.0 Kg Vacuum Package
Operating Data
Welding Positions
- All Positions
Polarity
- DC (+)
Notes on usage:
Be sure to clean up the contaminations on the base metal, groove and pass to pass with stainless steel brush. Dry the electrodes at 250-300℃ for 2 Hour before using. Take out a batch of half day consumption and keep at 100-150℃ during welding process. Use back-step method to prevent arc starting from blowholes and hold for 3-5 seconds at every end—up. Maintain short arc length to prevent porosity problem. Do not exceed the range of recommended current. Over heat input might decrease the impact value.
It is hard to proceed by overhead or vertical position, flat position instead is recommended.
We do hereby certify that; the weld metal deposit, has been tested, mechanically and chemically and all results are comply with the requirements of specifications of Elkadesia for engineering industries and the Specification of ASME II part C SFA 5.01 Class C5 and level of tests in J or 5.
