R60901 Alloy vs. Zamak 7

R60901 alloy belongs to the otherwise unclassified metals classification, while Zamak 7 belongs to the zinc alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is R60901 alloy and the bottom bar is Zamak 7.

UNS R60901 Zirconium-Niobium Alloy Zamak 7 (ASTM AG40B, Z33523, Mazak 7) Zinc Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		98
Elastic (Young's, Tensile) Modulus, GPa		86

Elongation at Break, %		17 to 22
Elongation at Break, %		13

Poisson's Ratio		0.34
Poisson's Ratio		0.25

Shear Modulus, GPa		37
Shear Modulus, GPa		33

Tensile Strength: Ultimate (UTS), MPa		500 to 580
Tensile Strength: Ultimate (UTS), MPa		280

Tensile Strength: Yield (Proof), MPa		350 to 390
Tensile Strength: Yield (Proof), MPa		250

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		120

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		410

Thermal Conductivity, W/m-K		17
Thermal Conductivity, W/m-K		110

Thermal Expansion, µm/m-K		6.3
Thermal Expansion, µm/m-K		27

Otherwise Unclassified Properties

Density, g/cm³		6.6
Density, g/cm³		6.4

Embodied Water, L/kg		270
Embodied Water, L/kg		380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		88 to 100
Resilience: Ultimate (Unit Rupture Work), MJ/m³		36

Resilience: Unit (Modulus of Resilience), kJ/m³		640 to 760
Resilience: Unit (Modulus of Resilience), kJ/m³		370

Stiffness to Weight: Axial, points		8.3
Stiffness to Weight: Axial, points		7.5

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		21 to 25
Strength to Weight: Axial, points		12

Strength to Weight: Bending, points		21 to 24
Strength to Weight: Bending, points		15

Thermal Diffusivity, mm²/s		9.7
Thermal Diffusivity, mm²/s		43

Thermal Shock Resistance, points		58 to 67
Thermal Shock Resistance, points		8.6

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		3.5 to 4.3

Cadmium (Cd), %		0
Cadmium (Cd), %		0 to 0.0020

Copper (Cu), %		0
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0
Iron (Fe), %		0 to 0.075

Lead (Pb), %		0
Lead (Pb), %		0 to 0.0030

Magnesium (Mg), %		0
Magnesium (Mg), %		0.0050 to 0.020

Nickel (Ni), %		0
Nickel (Ni), %		0.0050 to 0.020

Niobium (Nb), %		2.4 to 2.8
Niobium (Nb), %		0

Tin (Sn), %		0
Tin (Sn), %		0 to 0.0010

Zinc (Zn), %		0
Zinc (Zn), %		95.3 to 96.5

Zirconium (Zr), %		96.8 to 97.5
Zirconium (Zr), %		0

Residuals, %		0 to 0.29
Residuals, %		0