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ASTM A228 Music Wire vs. Type 2 Magnetic Alloy

Both ASTM A228 music wire and Type 2 magnetic alloy are iron alloys. They have 51% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is Type 2 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
2.0 to 38
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 2450
510 to 910
Tensile Strength: Yield (Proof), MPa 2050
260 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
33
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.4
5.9
Embodied Energy, MJ/kg 19
81
Embodied Water, L/kg 45
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
18 to 160
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 87
17 to 30
Strength to Weight: Bending, points 52
17 to 25
Thermal Shock Resistance, points 79
16 to 29

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.050
Chromium (Cr), % 0
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98 to 99
48.2 to 53
Manganese (Mn), % 0.2 to 0.6
0 to 0.8
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0
47 to 49
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0.1 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030