ADC12 vs A380 Aluminum Die Casting: How OEM Buyers Should Choose

2026-06-17 11:15:39

ADC12 and A380 are both common aluminum die casting alloys, but buyers should not treat them as interchangeable labels. The right choice depends on casting complexity, mechanical requirement, regional material preference, surface finishing and cost target.

Why this comparison matters for OEM buyers

A good alloy decision starts with the part function. A housing with many ribs and bosses, a heat sink base, and a machined mounting bracket may all be aluminum die castings, but their material priorities are different.

ADC12 vs A380 decision table

How a factory reviews this choice

Huabo reviews alloy selection together with wall thickness, tooling flow, machining surfaces and surface treatment. If a buyer specifies A380 but the part function can be met with ADC12, the discussion should happen before quotation is finalized.

When the cheaper-looking option becomes more expensive

A material name alone rarely decides final cost. Mold complexity, CNC machining, coating and inspection often have more influence than the alloy price difference.

Information to include in the RFQ

Include the alloy requirement, drawing standard, expected surface finish, annual quantity and any mechanical or environmental requirement.

Related reference: custom ADC12 Aluminum Die Casting tray housing, aluminum die casting service and electronics die casting parts.

When the alloy name should not be the first decision

For many imported die casting projects, the buyer asks for ADC12 because it is familiar in Asian supply chains, while another buyer asks for A380 because the original drawing was made around a North American material callout. Neither request is wrong, but the better discussion is: which surfaces are machined, where the load is applied, whether the part is painted, and whether the casting has thick bosses next to thin ribs. A supplier who only answers "yes, we can cast it" has not yet checked the real project risk.

Practical sourcing note

If the drawing allows equivalent materials, ask the factory to state the proposed alloy, its standard, and the reason for the choice in the quotation. This creates a record that engineering, purchasing and quality can all review before mold approval.