Copper alloy serves as beryllium-copper alternative

November 14, 2012

Ampco Metal has introduced AMPCOLOY® 944, a new copper-nickel-silicone-chromium alloy developed as an alternative to beryllium copper for industrial applications requiring a combination of strength and high thermal conductivity. It provides an average hardness of 28 HRC and thermal conductivity of 156 W/m.K.

The alloy can be used for applications demanding a high hardness level, such as cores, core inserts, cavities inserts, runnerless molding systems, hot runner nozzles, core pins, blow pins, ejector-sleeve core combinations, sprue bushings, and neck and tail pinchoffs.

With electrical conductivity of about 35 percent IACS, the alloy can be used in resistance welding applications and integrated circuits chips production fields.

The material is available from stock in round rod diameters from 1 to 4 in. and plate up to 4 in. thick. Other forms available on request include forged shapes and finished-machined parts per customer drawings.