Product Overview
Manganese Bronze Degasifier & Deoxidizer is a copper-aluminum base treatment alloy with a nominal composition of 63% Cu, 26.5% Al, 6% Mn, 2.5% Mg, 1.5% Ti and 0.25% Ca, formulated for high-strength yellow brass and manganese bronze melts. Every element except copper is a strong deoxidizer: aluminum, magnesium, titanium and calcium combine with dissolved oxygen, and titanium also ties up nitrogen, so the melt carries less gas into the mold and forms fewer oxide inclusions. Manganese and aluminum are already alloying elements in manganese bronze, so the addition does not introduce foreign elements, and the copper base lets the alloy dissolve quickly at normal pouring temperatures.
The alloy melts over a range of roughly 1,090–1,560°F (588–849°C), well below manganese bronze pouring temperatures, and has a density of about 0.184 lbs/in³ (5.1 g/cm³). Cleaner metal flows better and produces sounder, more pressure-tight castings such as valve bodies, marine hardware, gears and structural fittings.
Forms: 40-15 broken waffles, sized for weighed additions to the furnace or ladle.
