Description

Metspec 281-338 is a low-melting alloy. It's also known as MCP 150. It's a bismuth-tin alloy with a melting point of 281°F (138°C) for solidus and 338°F (170°C) for liquidus. It has a short-term tensile strength of 8,000 lbs/sq.in. and a yield temperature of 302°F. Metspec 281-338 is used for: *Work-holding in the turbine blade industry *Electroforming mandrels *Lost wax pattern dies *Holding jet turbine engine blades for machining Metspec 281-338 has the following technical information: *Weight: 0.296 lbs/cu.in *Brinnell Hardness No. (500 kg): 22 *Growth/Shrinkage - Time after Casting: after 2 mi.: -0.0001, after 1 hour: -0.0001 Low-melting alloys are also known as fusible alloys. They're alloys that melt below 450°F (233°C).