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ACI-ASTM CN3MN Steel vs. ASTM A228 Music Wire

Both ACI-ASTM CN3MN steel and ASTM A228 music wire are iron alloys. They have 46% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3MN steel and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
710
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 39
12
Fatigue Strength, MPa 250
1280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 620
2450
Tensile Strength: Yield (Proof), MPa 300
2050

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
49
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 33
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
1.4
Embodied Energy, MJ/kg 84
19
Embodied Water, L/kg 200
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
87
Strength to Weight: Bending, points 20
52
Thermal Diffusivity, mm2/s 3.4
13
Thermal Shock Resistance, points 14
79

Alloy Composition

Carbon (C), % 0 to 0.030
0.7 to 1.0
Chromium (Cr), % 20 to 22
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 41.4 to 50.3
98 to 99
Manganese (Mn), % 0 to 2.0
0.2 to 0.6
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
0
Nitrogen (N), % 0.18 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.3
Sulfur (S), % 0 to 0.010
0 to 0.030