Description

CS Alloys Tru 281 is a eutectic alloy with a density of 0.315 lbs./in3. It's used in aircraft assembly and to anchor shafts in permanent magnet rotors. Here are some other uses for Tru 281: *Investment casting: Substitutes for "lost wax" pattern dies *Proof casting *Sealing or soldering in low-temperature applications Tru 281 is a tin-based, non-eutectic low melting alloy. It has a melting temperature of 281º F or 138.0º C. Here are some other properties of Tru 281: *Contains bismuth and tin *Has a net maximum expansion of 0.0005" per inch *Has a weight of 1 pound *Has dimensions of 5½” L x 1½ W x ½" H