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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.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
710
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
12
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
72
Tensile Strength: Ultimate (UTS), MPa 540
2450
Tensile Strength: Yield (Proof), MPa 390
2050

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
49
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
280
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
87
Strength to Weight: Bending, points 22
52
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 69
79

Alloy Composition

Carbon (C), % 0 to 0.1
0.7 to 1.0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
98 to 99
Manganese (Mn), % 0
0.2 to 0.6
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0
0.1 to 0.3
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 91.9 to 98
0