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Cast CuMn Alloy micrograph Purdue University
A micrograph image shows cellular structures in a casting of a new copper-manganese alloy, with no indication of microporosity.

New Lead-Free Brass Alloy Research Moving Toward the Market

Two teams are claiming metallurgical and mechanical success with new formulations for castings to be used in water handling and plumbing systems

The issue of toxic lead in brass alloys used for casting water valves and plumbing fixtures is a low-level debate: foundries producing products for that market segment have settled on alternative alloys, but there is a general sense that better options may be available

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