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72 Burnt Cast Iron Welding Rod Kit (3/32" diameter)
Product ID : 42883102
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Galleon Product ID
42883102
Product is Out of Stock as
of Feb, 15 2024
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About 72 Burnt Cast Iron Welding Rod Kit
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.
