Brass is an alloy primarily composed of copper and zinc, offering good corrosion resistance, especially in water and air, but can be susceptible to dezincification under high-temperature or high-flow conditions. It is softer and more malleable than stainless steel, which makes it easier to machine and shape for various applications. Brass is heavier than stainless steel, but it’s more affordable due to the lower cost of raw materials like copper and zinc. It’s commonly used in decorative items, plumbing fittings, and electrical connectors where moderate corrosion resistance is sufficient.

In contrast, stainless steel is an iron-based alloy with at least 10.5% chromium, offering superior corrosion resistance in harsh environments like marine, chemical, and food-processing industries. It is much stronger, more durable, and better suited for high-pressure, high-temperature, and heavy-duty applications. While stainless steel is more difficult to machine than brass, its higher strength and resistance to rust, staining, and corrosion make it ideal for use in aerospace, medical devices, and construction, despite its higher cost.