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Brass is a metal you come into contact with almost every day—in plumbing, machine components, electronics, and even musical instruments. And yet… most people never stop to consider why this alloy is so common. In this article, I show you what brass really is, how it works at the microstructural level, and why the industry has embraced it so much. 🔬 In the theoretical part, you will learn: ✔ What brass is and how the Cu-Zn system works ✔ How zinc changes the properties of copper ✔ What are the differences between single-phase and two-phase brasses ✔ What alloying additives are used in industrial practice ✔ Why brass has such excellent technological properties 🔥 In the practical part, you will learn: ➡ Brass melting ➡ Preparation of liquid metal ➡ Pouring casting molds ➡ Behavior of the alloy during solidification Brass is one of the most versatile non-ferrous alloys—it combines good corrosion resistance, tribological properties, and excellent processability. That's why it has been used for hundreds of years—and everything indicates that it will remain present in industry for a long time. ⚠️ Note: This material is for educational purposes only. Working with liquid metals requires knowledge, experience, and appropriate protective equipment. 👍 If you liked this article, give it a thumbs up. 💬 Have questions about brass or foundry? Leave a comment. 🔔 Subscribe if you're interested in metallurgy and engineering materials. 🏷 Hashtags #brass #foundry #metallurgy #foundry #casting #engineeringmaterials #metals Contact: [email protected] Sources: [1] Han, J.; Zhang, T.; Zhang, B.; Zhang, J.; Zhao, J. Gradient Dual-Phase Structure Design in Brass: A New Strategy for Balancing Mechanical and Tribological Properties. Metals 2025, 15, 515. https://doi.org/10.3390/met15050515 [2] Stavroulakis, P.; Toulfatzis, A.I.; Pantazopoulos, G.A. Machinable Leaded and Eco-Friendly Brass Alloys for High Performance Applications: A Review. Metals 2022, 12, 246. https://doi.org/10.3390/met12020246 [3] Brans, K.; Kind, S.; Meurer, M.; Bergs, T. Influence of the Material Production Route on the Material Properties and the Machinability of the Lead-Free Copper-Zinc-Alloy CuZn40 (CW509L). Metals 2024, 14, 747. [4] Chaskis, S.; Vekeman, J.; Verbeken, K. Compositional Design and Thermal Processing of a Novel Lead-Free Brass Alloy with Improved Machinability. Metals 2024, 14, 620. https://doi.org/10.3390/met14060620 [5] Farabi E, Zarei-Hanzaki A, Pishbin MH, Moallemi M. Rationalization of duplex brass hot deformation behavior: The role of microstructural components. Materials Science and Engineering: A. 2015;641:360–368. https://doi.org/10.1016/j.msea.2015.0....