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ACI-ASTM CA15 Steel vs. ASTM A228 Music Wire

Both ACI-ASTM CA15 steel and ASTM A228 music wire are iron alloys. They have 86% of their average alloy composition in common. There are 29 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 ACI-ASTM CA15 steel and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
710
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
12
Fatigue Strength, MPa 370
1280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 700
2450
Tensile Strength: Yield (Proof), MPa 570
2050

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
400
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
49
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
19
Embodied Water, L/kg 100
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
87
Strength to Weight: Bending, points 23
52
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 26
79

Alloy Composition

Carbon (C), % 0 to 0.15
0.7 to 1.0
Chromium (Cr), % 11.5 to 14
0
Iron (Fe), % 81.8 to 88.5
98 to 99
Manganese (Mn), % 0 to 1.0
0.2 to 0.6
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
0.1 to 0.3
Sulfur (S), % 0 to 0.040
0 to 0.030