72 Burnt Cast Iron Electrode
$55.00 – $550.00
72 is a nickel free cast iron electrode which seals in porosity generating contaminants prior to finish welding with 77 electrode.
There are occasions in industry where exceedingly dirty cast iron is encountered. 77, which bonds well to most cast iron does have a limitation. Since 77 has controlled penetration, which is ideal for non-cracking and machinability, it may not be able to bond exceptionally dirty cast iron. 72 should be used for this application. It has a high penetration, can anchor deep into the subsurface of dirty cast iron, and seals in porosity generating contaminates prior to finish welding with 77. 72 is used for a cladding operation, then the weld is completed with 77.
- Easily clads heat oxidized and oil impregnated castings
- Perfect color match to cast iron
- Non-conductive flux-coating
Note: Use stringer or moderate weave technique. When cladding, cover the entire base surface prior to finish welding.
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77-Electrode Non-Cracking Cast Iron Welding Rod$65.00 – $650.00
|⇄︎ Bonding Strength||55000 psi, 379.21 MPa|
|🔧︎ Sizes Available (in)||5/32in, 1/8in, 3/32in|
|🔧︎ Sizes Available (mm)||3.96mm, 3.17mm, 2.38mm|