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ASTM A228 Music Wire vs. S44401 Stainless Steel

Both ASTM A228 music wire and S44401 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is S44401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
21
Fatigue Strength, MPa 1280
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 1470
300
Tensile Strength: Ultimate (UTS), MPa 2450
480
Tensile Strength: Yield (Proof), MPa 2050
300

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
930
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
22
Thermal Expansion, µm/m-K 12
10

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
12
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 19
40
Embodied Water, L/kg 45
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
90
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 87
17
Strength to Weight: Bending, points 52
18
Thermal Diffusivity, mm2/s 13
5.9
Thermal Shock Resistance, points 79
17

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.025
Chromium (Cr), % 0
17.5 to 19.5
Iron (Fe), % 98 to 99
75.1 to 80.6
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.3
0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8