The Lincoln Techalloy 208 is a premium TIG welding rod classified under AWS A5.14 as ERNi-1. Designed specifically for the welding of Nickel 200 and Nickel 201, this filler metal is engineered to address the specific metallurgical challenges associated with commercially pure nickel. One of the primary challenges in welding these alloys is the susceptibility to porosity caused by nitrogen and oxygen absorption in the molten pool. Techalloy 208 addresses this through precise alloying additions of Titanium and Aluminum. These elements act as potent deoxidizers and nitride formers, effectively scavenging impurities to produce sound, defect-free deposits.
This rod is characterized by its high nickel content (minimum 93%), which ensures that the weld metal retains the exceptional corrosion resistance of the base material. It is particularly effective in environments involving caustic soda, halides, and other alkaline chemicals. The metallurgical composition also makes it suitable for dissimilar metal joining, such as welding nickel alloys to carbon steel or stainless steel, provided proper dilution control is maintained.
Industrial applications for Techalloy 208 are concentrated in sectors requiring high-purity materials for corrosion resistance. This includes the fabrication of chemical processing equipment, synthetic fiber production machinery, and food processing hardware. The 3/32" (2.4mm) diameter offers a versatile heat input range, suitable for both root passes in pipe welding and fill passes in plate fabrication. Supplied in a 10lb tube, the rods are protected from atmospheric contamination until use.
| Additional Information |
|---|
| Brand:Lincoln Electric |
| Diameter:2.5mm (3/32") |
| Packaging:10 lb Tube |
| Weld Process:TIG (GTAW) |
| AWS Classification:ERNi-1 |
| Material Composition:Nickel, Titanium, Aluminum |
| Length:36 in |
| Shielding Gas Requirement:100% Argon, Argon/Helium Mix |
| Applications:Chemical Processing, Caustic Handling, Food Processing |
| Packaging Description:10 tube |
| Grade:N/A |
| Position:N/A |
| Polarity:N/A |
