water systems. It is currently being used as a substitute for semi-red brass in immersed pumps. Tin-Bronze (C90200 to C91700)—Tin-
This adapter used on a control head of a power pallet truck is made from yellow brass. Converted from a fabrication of 13 components, this casting helped reduce cost savings by 25% and achieve required strength properties to fi ght wear and tear.
bronze is an alloy of copper and tin with good aqueous corrosion-resistance. Addi- tional attributes include high strength, good wear resistance and a low friction coeffi cient compared to steel. T is accounts for its use in bearings, piston rings and gear parts. Leaded Tin-Bronze (C92200 to C92900)—These alloys are a tin- bronze containing 0.3-6% lead. Leaded tin-bronze offers the addi- tional advantage of free cutting. High-Leaded Tin Bronze (C93100 to C94500)—T is is a tin-bronze contain- ing 2-34% lead. High-leaded tin-bronze is used in sleeve bearings and bushings because the additional lead provides improved lubricity. Nickel-Tin-Bronze (C94700 to C94900)—T is is a tin-bronze containing 4-6% nickel. Nickel-tin-bronze is a versa- tile alloy that has the good wear resistance and corrosion resistance found in tin- bronzes with improved strength. Nickel- tin-bronze is used in bearings, gears, wear guides, pump and valve components, and motion and translation devices, such as shift forks and circuit breaker parts. Aluminum-Bronze (C95200 to C95900)—Aluminum-bronze has a complex metallurgical structure that imparts both strength and oxidiza- tion resistance due to the formation of alumina-rich protective fi lms. T ese al- loys are wear-resistant and exhibit good casting and welding characteristics. T eir corrosion resistance is superior in seawater, chloride and diluted acids. Applications are varied and include propellers and valves, pickling hooks, pickling baskets and wear rings. T e aluminum bronze alloys that contain nickel are desirable for fl uid-moving applications, such as pump impellers, because of superior erosion, corrosion and cavitation resistance. Copper-Nickel (C96200 to 96950)—
T ese alloys are simple solid solutions of nickel in copper without lead. T e copper-nickel alloys have excellent corro- sion resistance in seawater, high strength and ease of manufacturing. T eir various applications include pumps, valves, ship tail shaft sleeves and other marine ap- plications. Nickel-Silver (C97300 to C97800)—
T e presence of nickel accounts for these alloys’ silver luster. T ese alloys, which do not contain silver, off er good corrosion resistance, ease of castability and good machinability. Despite their high degree of alloying,
36 METAL CASTING DESIGN & PURCHASING 2013 CASTING SOURCE DIRECTORY
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