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| Description A continuous cast (UNS-C95900) aluminum-iron-copper alloy recommended for heavier-duty applications involving compressive wear and high abrasion, especially where no impact is present. Uses include: die rings, forming rolls, inserts, wiping blocks, cam followers, pilot bushings, dies and drill jig bushings. Also, offers proven performance in plastic mold applications - ejector sleeves and bushings, guide pin and leader pin bushings, wear plates, gibs. MoldStar®21 alloy will maintain mechanical properties at temperatures up to 6000F and has a machinability rating of 20%. The alloy provides corrosion resistance to non-oxidizing mineral acids. Can be welded with both gas-shielded and shielded metal-arc processes. Brazing, soldering and oxyfuel gas welding are not recommended. Cold working is not recommended. Hot formability is good with a forgeability rating of 75%. MoldStar®21 alloy can be hot worked at temperatures from 13750 to 15500F and annealed between 11000 and 12000F. The consistent superiority of MoldStar®21 alloy over commercial bronze is due, in large part, to the unique distribution of the alloy microstructure. Chemistry
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CDA C62500, C95900 Mechanical Properties
Physical Properties*
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