Never hurts to check a manufacturers literature to see what the design parameters are for a product. From Devcon:

High-tech, titanium-reinforced epoxy putty engineered for making critical repairs to machinery and precision parts. Restore bearing housings and scored shafts; rebuild wear rings, hydraulic rams, and valves; repair equipment and parts
that require a machined finish. So if that is your use, I'd say Devcon has your product.

For bonding metals, the design of the joint and interface is truthfully the most important aspect, then you can look at what would be a good product for that use. If however you have a metal part that is cracked, rarely is using an epoxy product to bond the part going to work and you need to look at welding the part.