Alloy Selection Guide

A380 vs ADC12 for Aluminum Die Casting

A380 and ADC12 are closely related Al-Si-Cu die casting alloys, but drawing standards, sourcing region and validation requirements can make the correct call project-specific.

Discuss Your DrawingView Aluminum Die Casting
Engineering Note 1

Practical Comparison

Both alloys offer good die filling and are widely used for housings, brackets and structural covers. ADC12 is common in Asian drawings, while A380 is a frequent North American designation. They should not be treated as automatically interchangeable without reviewing the governing standard and required properties.

Decision factorA380ADC12
Typical sourcing contextNorth American specificationsAsian / JIS-oriented supply chains
CastabilityVery good general-purpose performanceExcellent fluidity for complex geometry
MachiningGood with controlled silicon and toolingGood; confirm tool wear and finish targets
CorrosionFinish or coating often specifiedFinish or coating often specified
Best useGeneral OEM housings and bracketsComplex housings and high-volume components
Engineering Note 2

What the Drawing Must Control

Specify the alloy standard, mechanical-property basis and any restricted chemistry rather than relying only on a commercial alloy name. Critical projects should define whether properties apply to separately cast test bars or production parts.

  • Alloy designation and governing standard
  • Heat-treatment condition, if any
  • Critical mechanical or pressure-tightness requirements
  • Surface finish and corrosion test
  • Material certificate and PPAP expectations
Engineering Note 3

How We Confirm the Route

Ningbo Empire reviews geometry, projected area, wall transitions, annual volume, machining exposure and finish requirements before confirming alloy and press assignment. The recommendation is documented during DFM rather than assumed from the part name.

Practical Answers

Frequently Asked Questions

Can ADC12 replace A380 directly?

Not automatically. The two alloys are similar, but chemistry limits, mechanical-property requirements and customer standards must be checked before substitution.

Which alloy is better for thin walls?

ADC12 is often selected for fluidity, but gate design, vacuum assistance and die temperature can be more important than the alloy name alone.

Need a Project-Specific Recommendation?

Send the drawing, application conditions and annual volume. Engineering will review the material, process and inspection route.