ASTM A228 Music Wire vs. Grade 705C Zirconium

ASTM A228 music wire belongs to the iron alloys classification, while grade 705C zirconium belongs to the otherwise unclassified metals. 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 ASTM A228 music wire and the bottom bar is grade 705C zirconium.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness		710
Brinell Hardness		200

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

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

Poisson's Ratio		0.29
Poisson's Ratio		0.34

Shear Modulus, GPa		72
Shear Modulus, GPa		36

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

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

Thermal Properties

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

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

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

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

Otherwise Unclassified Properties

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

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

Common Calculations

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

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

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

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

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

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

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

Alloy Composition

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

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

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

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

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

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

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

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

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

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

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

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