OK, I will be the first to admit it, I do not like Henry rifles. For a variety of reasons that I will not go into here.
However, I find it interesting that in the description of the brass used for their 'Original Henry' rifle Henry says "a specially-formulated hardened brass receiver with the same tensile strength as steel".
Since there are many, many different alloys of steel, each with its own physical properties, I would like to know exactly which steel alloy they are referring to when they say their brass has the same tensile strength as steel.
Simply put, I don't believe it.
Yes, historically most 'brass' framed rifles were actually gumetal, a form of bronze. Gunmetal was a bronze alloy consisting of 80-88% copper, 10-15% tin, and 2-5%zinc. That is what the frame of the original 1860 Henry rifle was made of. Gun writers started calling it brass a long time ago, and the name stuck, but it was really a form of bronze. Bronze is a copper alloy consisting mostly of copper and tin, brass is an alloy consisting mostly of copper and zinc. A number of years ago I worked for a company that was able to determine the actual content of the brass used by Uberti in their 1860 Henry and 1866 Winchester replicas through a process called X Ray Fluorescent Analysis. The results were 56% copper, 44% zinc. That is a pretty soft piece of brass, but they do not claim it is as strong as steel.