Site Search
+1 419.862.4216

HYPEREUTECTIC ALUMINUM SILICON ALLOY
AMC 4632

Materion’s AMC 4632 aluminum silicon alloy is a high quality hypereutectic aluminum silicon material. This alloy is manufactured by a powder metallurgy method that refines the microstructure and provides enhanced mechanical properties.

ADVANTAGES OF MATERION AMC 4632

Our aluminum silicon AMC 4632 can be used as a replacement for conventional aluminum alloys such as AA4032 and AA2618 for pistons and in a range of other applications. When using this alloy to replace existing materials it can help with weight reduction and improve stability at elevated temperatures. AMC4632 may be machined to a fine surface finish and tolerances using high-speed techniques. This aluminum silicon alloy can be used in automotive applications and for aerospace components. 

AMC 4632 alloy has a lower coefficient of thermal expansion, allowing designs to have tighter tolerances. It offers a high tensile modulus (approximately 19% higher than aluminum alloy AA4032), good strength and excellent fatigue resistance at ambient and elevated temperatures.


COMPARING PROPERTIES OF AMC 4632 & ALUMINUM 2618

Property AMC 4632 2618* Difference
Product Form Forged Forged
Temper T6 T61
Rp0.2 MPa (ksi) 380 (55) 370 (54) +3%
Rm MPa (ksi) 430 (62) 440 (64) -2%
Elastic Modulus GPa (msi) 94 (13.6) 75 (10.4) +25%
Elongation % 2 10 -80%
Density g/cm³ (lb/in³) 2.7 (0.097) 2.7 (0.097) 0%
Thermal Conductivity W/m/K 127 146 -13%
Thermal Expansion ppm/K 16.1 22 -27%
Vickers Hardness Hv10kg 180 140 +29%

*Aluminum 2618 data from MatWeb

COMPARING PROPERTIES OF AMC 4632 & ALUMINUM 4032

Property AMC 4632 4032** Difference
Product Form Forged Forged
Temper T6 T6
Rp0.2 MPa (ksi) 380 (55) 315 (46) +21%
Rm MPa (ksi) 430 (62) 380 (55) +13%
Elastic Modulus GPa (msi) 94 (13.6) 77 (11.4) +19%
Elongation % 2 9 -78%
Density g/cm³ (lb/in³) 2.7 (0.097) 2.68 (0.097) +1%
Thermal Conductivity W/m/K 127 138 -13%
Thermal Expansion ppm/K 16.1 20.2 -20%
Vickers Hardness Hv10kg 180 137 +31%

**Aluminum 4032 data from MatWeb

LEARN MORE ABOUT ALLOY AMC 4632

Talk with our engineers to see if aluminum silicon alloy AMC 4632 can add strength to your application.