Beryllium Copper Chill Vents

Beryllium copper chill vents let air escape from aluminium die casting moulds while freezing the metal before it can flash out. Conductivity and strength make them last. NGK Berylco is part of the NGK Group, with NGK Berylco UK in Salford, NGK Berylco France in Couëron near Nantes and NGK Deutsche Berylco in Germany.

The core NGK Berylco grades are C17200 (CuBe2, Berylco 25) for high strength, C17300 (CuBe2Pb, Berylco 33/25) for free machining and C17510 (CuNi2Be, Berylco 14) for high conductivity. They are supplied as strip, wire, rod and plate or block, plus chill vents and non-sparking safety tools. Material can be supplied annealed or cold worked for forming and heat treated afterwards, or mill hardened in Type-B and Type-S tempers ready to use.

Choosing a beryllium copper grade comes down to balancing strength, conductivity and how the part will be made. C17200 is the all-rounder. C17300 suits screw machined parts. C17510 is the pick when current carrying matters most.

Mill hardened strip saves a heat treatment step, while solution annealed material gives the most freedom to form complex shapes before hardening. NGK Berylco's technical team can help pin down the right grade and temper.

Aluminium die casters need tooling that pulls heat out fast and stands up to repeated thermal cycling. High conductivity and good strength make beryllium copper a proven choice for chill vents and die components.

Beryllium copper, also called beryllium bronze, adds between 0.4% and 2% beryllium to copper, with small additions of nickel, cobalt, iron, aluminium or lead. After heat treatment it reaches tensile strengths up to 1500 N/mm² and hardness up to 450 HV, while conductivity runs from around 22% to 70% IACS depending on grade. It is non-magnetic, non-sparking, corrosion resistant and works from cryogenic to elevated temperatures.

Buyers in regulated sectors need paperwork they can trust. NGK Berylco is certified to ISO 9001, EN 9100, ISO 14001 and ISO 45001, with a dedicated laboratory and a product compliance programme behind its alloys.

To discuss Beryllium Copper Chill Vents, contact NGK Berylco UK on +44 (0)161 745 7162 or email enquiries@ngkberylco.co.uk. The Salford team covers the UK, Ireland and the Nordic countries.