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Contact spring alloy DURACON 17A

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THE group of Duracon alloys offers high strength and good conductivity in combination with excellent bending behaviour in the cold worked (‘hard’) state.

Vacuumschmelze, represented in Australia by Engineering Design & Systems Pty Ltd , delivers DURACON 17A strip material in a new heat-treated condition.

In the latest development, the properties of DURACON 17A are enhanced by a special heat treatment before delivery. The relaxation behaviour is significantly improved, enabling application temperatures up to 200°C (390°F) without an age hardening process.

All other positive properties of DURACON including the excellent bending behaviour are fully retained, resulting in a combination of high strength and excellent relaxation behaviour - attributes which are currently only available from age-hardened parts.

If higher application temperatures of up to 250°C (480°F) and increased strength of up to 1500MPa (220ksi) are required, then these can also be reached by a conventional age hardening process.

Currently Vacuumschmelze delivers DURACON 17A strip material in the new heat-treated condition with a thickness range from 0.05mm to 0.2mm.

Heat treated DURACON 17A is particularly suitable for contact interfaces in telecommunication and automotive applications in the low current range with maximum demands on miniaturisation and/or temperature resistance.

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