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ASTM A228 Music Wire vs. AWS BAg-28

ASTM A228 music wire belongs to the iron alloys classification, while AWS BAg-28 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is AWS BAg-28.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
88
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
33
Tensile Strength: Ultimate (UTS), MPa 2450
150

Thermal Properties

Latent Heat of Fusion, J/g 250
140
Melting Completion (Liquidus), °C 1450
710
Melting Onset (Solidus), °C 1410
650
Specific Heat Capacity, J/kg-K 470
320
Thermal Expansion, µm/m-K 12
21

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.4
40
Embodied Energy, MJ/kg 19
630

Common Calculations

Stiffness to Weight: Axial, points 13
5.6
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 87
4.7
Strength to Weight: Bending, points 52
7.1
Thermal Shock Resistance, points 79
5.8

Alloy Composition

Carbon (C), % 0.7 to 1.0
0
Copper (Cu), % 0
29 to 31
Iron (Fe), % 98 to 99
0
Manganese (Mn), % 0.2 to 0.6
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
0
Silver (Ag), % 0
39 to 41
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
1.5 to 2.5
Zinc (Zn), % 0
26 to 30
Residuals, % 0
0 to 0.15