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ASTM A228 Music Wire vs. SAE-AISI M43 Steel

Both ASTM A228 music wire and SAE-AISI M43 steel are iron alloys. They have 75% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is SAE-AISI M43 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 2450
810 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1450
1550
Melting Onset (Solidus), °C 1410
1500
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 49
19
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
33
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
8.5
Embodied Energy, MJ/kg 19
120
Embodied Water, L/kg 45
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 87
27 to 77
Strength to Weight: Bending, points 52
24 to 47
Thermal Diffusivity, mm2/s 13
5.3
Thermal Shock Resistance, points 79
25 to 71

Alloy Composition

Carbon (C), % 0.7 to 1.0
1.2 to 1.3
Chromium (Cr), % 0
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98 to 99
70.8 to 76
Manganese (Mn), % 0.2 to 0.6
0.2 to 0.4
Molybdenum (Mo), % 0
7.5 to 8.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.1 to 0.3
0.15 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.3 to 3.0
Vanadium (V), % 0
1.5 to 1.8