Lead-Free Brass Alloys

Chicago Extruded Metals Company’s BioBrass is a family of non-leaded brass alloys that conforms to the latest North American plumbing standards. Lead has typically been added to brass to improve its machining properties.

Chicago Extruded Metals Company’s BioBrass is a family of non-leaded brass alloys that conforms to the latest North American plumbing standards. Lead has typically been added to brass to improve its machining properties. With BioBrass, the company is able to control and deliver a brass alloy that yields high machine speeds and low rates of tool wear. Precise tolerances can be held, even over long production runs.

BioBrass alloys are engineered to meet or exceed the guidelines for lead-free brass used throughout North America. BioBrass has 20-percent less dezincification response than C36000 alloy and has improved stress corrosion cracking response. It has the same chip type (Class 1) as C3600, facilitating work on the production line.

BioBrass can be engineered to increase its natural antimicrobial properties. When left uncoated, it inhibits the growth of disease-causing bacteria. It is also easy to recycle. It contains no silicone and no phosphates and can be mixed directly with C36000 and other brasses for recycling with no adverse effects. There is no need to clean out machines or maintain dedicated production equipment, the company says.