Grade 705C Zirconium vs. ASTM A228 Music Wire

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while ASTM A228 music wire belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is ASTM A228 music wire.

Grade 705C Cast Zirconium ASTM A228 (SWP-A, K08500) Music Wire

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness		200
Brinell Hardness		710

Elastic (Young's, Tensile) Modulus, GPa		98
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		13
Elongation at Break, %		12

Poisson's Ratio		0.34
Poisson's Ratio		0.29

Shear Modulus, GPa		36
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		540
Tensile Strength: Ultimate (UTS), MPa		2450

Tensile Strength: Yield (Proof), MPa		390
Tensile Strength: Yield (Proof), MPa		2050

Thermal Properties

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

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		470

Thermal Conductivity, W/m-K		18
Thermal Conductivity, W/m-K		49

Thermal Expansion, µm/m-K		5.7
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		6.7
Density, g/cm³		7.8

Embodied Water, L/kg		450
Embodied Water, L/kg		45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		66
Resilience: Ultimate (Unit Rupture Work), MJ/m³		280

Stiffness to Weight: Axial, points		8.1
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		22
Strength to Weight: Axial, points		87

Strength to Weight: Bending, points		22
Strength to Weight: Bending, points		52

Thermal Diffusivity, mm²/s		9.9
Thermal Diffusivity, mm²/s		13

Thermal Shock Resistance, points		69
Thermal Shock Resistance, points		79

Alloy Composition

Carbon (C), %		0 to 0.1
Carbon (C), %		0.7 to 1.0

Hafnium (Hf), %		0 to 4.5
Hafnium (Hf), %		0

Hydrogen (H), %		0 to 0.0050
Hydrogen (H), %		0

Iron (Fe), %		0 to 0.3
Iron (Fe), %		98 to 99

Manganese (Mn), %		0
Manganese (Mn), %		0.2 to 0.6

Niobium (Nb), %		2.0 to 3.0
Niobium (Nb), %		0

Nitrogen (N), %		0 to 0.030
Nitrogen (N), %		0

Oxygen (O), %		0 to 0.3
Oxygen (O), %		0

Phosphorus (P), %		0 to 0.010
Phosphorus (P), %		0 to 0.025

Silicon (Si), %		0
Silicon (Si), %		0.1 to 0.3

Sulfur (S), %		0
Sulfur (S), %		0 to 0.030

Zirconium (Zr), %		91.9 to 98
Zirconium (Zr), %		0