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ASTM A228 Music Wire vs. ACI-ASTM CE8MN Steel

Both ASTM A228 music wire and ACI-ASTM CE8MN steel are iron alloys. They have 62% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
29
Fatigue Strength, MPa 1280
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 2450
750
Tensile Strength: Yield (Proof), MPa 2050
500

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.2
Embodied Energy, MJ/kg 19
58
Embodied Water, L/kg 45
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 87
27
Strength to Weight: Bending, points 52
23
Thermal Diffusivity, mm2/s 13
4.2
Thermal Shock Resistance, points 79
21

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.080
Chromium (Cr), % 0
22.5 to 25.5
Iron (Fe), % 98 to 99
56 to 66.4
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.5
Nickel (Ni), % 0
8.0 to 11
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.3
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040