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ASTM A228 Music Wire vs. Commercially Pure Palladium

ASTM A228 music wire belongs to the iron alloys classification, while commercially pure palladium belongs to the otherwise unclassified metals. There are 19 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 commercially pure palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 12
1.1 to 11
Poisson's Ratio 0.29
0.39
Shear Modulus, GPa 72
43
Shear Strength, MPa 1470
120 to 200
Tensile Strength: Ultimate (UTS), MPa 2450
200 to 380

Thermal Properties

Latent Heat of Fusion, J/g 250
160
Melting Completion (Liquidus), °C 1450
1550
Melting Onset (Solidus), °C 1410
1550
Specific Heat Capacity, J/kg-K 470
240
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
16
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
12

Otherwise Unclassified Properties

Density, g/cm3 7.8
12

Common Calculations

Stiffness to Weight: Axial, points 13
5.6
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 87
4.5 to 8.8
Strength to Weight: Bending, points 52
6.2 to 9.7
Thermal Shock Resistance, points 79
9.8 to 19

Alloy Composition

Carbon (C), % 0.7 to 1.0
0
Iron (Fe), % 98 to 99
0
Manganese (Mn), % 0.2 to 0.6
0
Palladium (Pd), % 0
99.8 to 100
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.2