Galvanization of malleable iron fittings is primarily intended to achieve what?

Galvanization of malleable iron fittings is primarily intended to provide corrosion resistance. This process involves coating the iron with a layer of zinc, which acts as a barrier to protect the underlying metal from moisture and other corrosive elements that could lead to rust and degradation over time. By preventing corrosion, the lifespan and functionality of the fittings are significantly enhanced, making them more durable for plumbing applications.

The other choices, while relevant to different contexts, do not accurately capture the primary purpose of galvanization. Structural integrity refers to the fittings’ ability to withstand forces and loads, which is not the direct aim of galvanization. Lower cost is not a primary goal of the galvanization process itself; rather, it is often considered a valuable trade-off when looking at long-term maintenance costs. Increased flexibility does not relate to galvanization, as that process does not impact the physical flexibility of the material. Thus, the primary intention behind galvanization is to ensure that malleable iron fittings remain effective and reliable by protecting them from corrosion.