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ASTM A228 Music Wire vs. ASTM Grade HC Steel

Both ASTM A228 music wire and ASTM grade HC steel are iron alloys. They have 69% 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 ASTM grade HC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
6.0
Fatigue Strength, MPa 1280
96
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 2450
430
Tensile Strength: Yield (Proof), MPa 2050
200

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 49
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
14
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 19
40
Embodied Water, L/kg 45
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
21
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 87
16
Strength to Weight: Bending, points 52
16
Thermal Diffusivity, mm2/s 13
4.5
Thermal Shock Resistance, points 79
14

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.5
Chromium (Cr), % 0
26 to 30
Iron (Fe), % 98 to 99
61.9 to 74
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 4.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.3
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040