Materials / TECHNICAL GUIDE

A380 aluminum for die casting

A380 is a widely used aluminum die casting alloy for complex components. Its suitability should be assessed against the drawing, service environment and final finishing condition.

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Drawings, sketches, photographs or an early specification are welcome.

Illustration accompanying the a380 aluminum for die casting guide — Technical illustration.

ALLOY SELECTION

Use A380 as part of a manufacturing specification, then identify the local features whose fit, surface or pressure function needs tighter control than the general casting.

01 / Materials

Let the application define the comparison

A380 is often considered for housings and brackets where cast detail and repeat production make die casting attractive. Compare tooling and secondary operations with machining from stock before choosing the route for a new or changing design.

Use values from the applicable specification and agreed specimen condition when mechanical properties enter the design. Published typical properties help screen materials; they are not acceptance results for a finished part.

02 / Materials

Control the interfaces after casting

The base alloy does not establish bearing-fit accuracy or the relationship between a flange and a bore. Plan datum surfaces and machining setups around those interfaces. Identify whether final dimensional acceptance is before or after coating.

Removing the cast surface can expose internal discontinuities. On a sealing face or port, discuss local inspection and leakage requirements rather than extending a cosmetic porosity rule to every internal region.

03 / Materials

Review coating and substitution explicitly

Match surface preparation, coating and masking to the environment and assembly. Where decorative anodizing is requested, confirm that the appearance on a representative casting is acceptable before relying on a color reference.

State the governing material specification and casting designation, including condition where required. A380 is not an automatic substitute for ADC12, and A356 introduces a different alloy/process discussion. Record any approved alternative on the order.

MATERIALS / PROJECT DETAILS

Material requirements and records

Subject	Technical definition	Useful evidence
Material acceptance	Grade, governing specification and batch	Agreed material documentation or chemistry
Bearing and mounting features	Drawing datums and final condition	Actual size and geometric results
Sealing requirement	Machined wall and finished component	Defined leak-test record
Substitution	Composition and performance review	Written approval of the alternate specification

The quotation and agreed inspection plan establish which records and checks apply to the project.

COMMON QUESTIONS

Before the specification is complete.

Does an A380 material report prove component strength?

A chemistry report identifies composition. Required strength needs evidence appropriate to the specification, specimen and component condition.

Is a fine cosmetic finish possible?

Review the desired appearance, surface preparation and coating on a representative sample. Specify visible zones and acceptance conditions rather than relying on the alloy name.

RELATED GUIDES

Start with what you have.

Send the part’s purpose, available files and the question you need to resolve. Material, process and inspection details can be developed during the review.

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