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ASTM A228 Music Wire vs. ASTM A732 Cast Steel

Both ASTM A228 music wire and ASTM A732 cast steel are iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 A732 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
140 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
4.0 to 25
Fatigue Strength, MPa 1280
230 to 750
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72 to 73
Tensile Strength: Ultimate (UTS), MPa 2450
460 to 1470
Tensile Strength: Yield (Proof), MPa 2050
310 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 250
250 to 260
Maximum Temperature: Mechanical, °C 400
400 to 430
Melting Completion (Liquidus), °C 1450
1440 to 1460
Melting Onset (Solidus), °C 1410
1400 to 1420
Specific Heat Capacity, J/kg-K 470
470 to 480
Thermal Conductivity, W/m-K 49
39 to 50
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.1 to 7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2 to 8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.0 to 3.8
Density, g/cm3 7.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4 to 1.7
Embodied Energy, MJ/kg 19
19 to 24
Embodied Water, L/kg 45
47 to 54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
45 to 130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 87
16 to 52
Strength to Weight: Bending, points 52
17 to 37
Thermal Diffusivity, mm2/s 13
10 to 14
Thermal Shock Resistance, points 79
14 to 43