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SA301/SA401 Details

MMC is a High performance casting in which SiC ceramic particles are uniformly dispersed in aluminum alloy.


Lightweight ・ High rigidity=High Specific Stiffness

Density → Equivalent to aluminum : 2.8~2.9 g/cm3
Rigidity → Higher than cast iron : 125~150 GPa

Low thermal expansion ・ High thermal conductivity

Thermal expansion is equivalent to carbon steel and stainless steel
Thermal conductivity is higher than aluminum.

By casting methord

It can be replaced with the same shape as aluminum casting, or iron casting.
Manufacture of large complex shape products (500 kg, 2m×2m or more) is possible.

With our own processing machine,

We consistently handle from casting to final shape processing.


Basic properties

MaterialMMCAluminum castingIron castingStainless SUS304
SA301 SA401
Density (g/cm3) 2.8 2.9 2.7 7.3 7.9
Young's Modulus (GPa) 125 150 80 115 210
Specific rigidity 45 52 30 16 27
Thermal Expansion (x10-6/K) 14 13 20.0 9.8 17.3
Thermal Conductivity (W/m・K) 150 155 125 50 15

※The above property values are not guaranteed values.

Manufacturing method

SA301製法 英語.PNG


It is used for precision machinery or inspection equipment parts that requires light weight and high rigidity, or that needs to move and stop at high speed.

LCD manufacturing equipments
Semiconductor manufacturing equipments
Chip mounters
High speed press machines
Machine tools
Environment and ECO field
Various production facilities

MMC are widely adopted in various fields.

Adopted Product Examples

Lightweight casting case (For measuring instruments)