A383 / ADC12 Aluminum Casting Alloy

AA A383.0 = JIS ADC12. A383 (equivalent to JIS ADC12) is an Al-Si-Cu die-casting alloy with higher silicon than A380, giving superior fluidity for thin-wall and intricate castings.

Chemical composition (nominal wt %)

Element	%
Silicon (Si)	9.5–11.5
Copper (Cu)	2.0–3.0
Iron (Fe)	≤1.3
Magnesium (Mg)	≤0.10

Mechanical properties

Property	Value
Tensile strength	310 MPa (45 ksi)
Yield strength	150 MPa (22 ksi)
Elongation	3.5%
Hardness	~75 HB

Density: 2.74 g/cm³ · Heat treatment: Not heat-treatable; as-cast (F) die casting.

Cross-standard equivalents

Standard	Equivalent grade
JIS	ADC12
EN AC	EN AC-47100
GB	YL112

Equivalents by nominal class — confirm exact chemistry & spec for critical parts.

Typical applications

Thin-wall electronic housings
Intricate die castings
Telecom & lighting enclosures
Automotive components

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FAQ

What is ADC12 equivalent to?

JIS ADC12 corresponds to the AA A383 die-casting alloy and EN AC-47100. It has higher silicon and lower copper than A380, giving better fill for thin walls.