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AWS E309Nb vs. ASTM A228 Music Wire

Both AWS E309Nb and ASTM A228 music wire are iron alloys. They have 60% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E309Nb and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
12
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 620
2450

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.4
Embodied Energy, MJ/kg 64
19
Embodied Water, L/kg 180
45

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
87
Strength to Weight: Bending, points 21
52
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 16
79

Alloy Composition

Carbon (C), % 0 to 0.12
0.7 to 1.0
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 54.8 to 64.8
98 to 99
Manganese (Mn), % 0.5 to 2.5
0.2 to 0.6
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
0
Niobium (Nb), % 0.7 to 1.0
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 0.030
0 to 0.030