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Alcoa - Model A152-A153-EZCast-NHT -Non-Heat Treatable Alloy

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Eliminates heat treat cost and distortion, good castability for shock towers, structural parts, battery housings, etc. Non-Heat Treatable alloys for time- and cost-effi cient production of HPDC thin-walled automotive structural parts

The majority of High Pressure Die Casting (HPDC) alloys available in the market cannot be used in `as cast` state and require lengthy and costly heat treatment with further mechanical straightening to bring the casting to its original geometry. In addition, the alloys, able to yield sufficient mechanical properties without heat treatment (so called Non-Heat Treatable alloys), often suffer from poor castability

To address this issue, Alcoa introduced two new, proprietary Non-Heat Treatable alloys with improved castability.

EzCast-NHT™ alloys offer good castability (good hot cracking resistance), mechanical properties in as-cast state comparable to T5/T6 temper of standard HPDC foundry alloys, as well as good rivetability.

The alloys are designed for HPDC production of structural parts like shock towers, cross members, battery trays, frame nodes, e-motor housings, etc.