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ASTM A228 Music Wire vs. S32750 Stainless Steel

Both ASTM A228 music wire and S32750 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 30 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 S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 12
17
Fatigue Strength, MPa 1280
360
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
81
Shear Strength, MPa 1470
530
Tensile Strength: Ultimate (UTS), MPa 2450
860
Tensile Strength: Yield (Proof), MPa 2050
590

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
15
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.1
Embodied Energy, MJ/kg 19
56
Embodied Water, L/kg 45
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
130
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 87
31
Strength to Weight: Bending, points 52
26
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 79
25

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 98 to 99
58.1 to 66.8
Manganese (Mn), % 0.2 to 0.6
0 to 1.2
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.1 to 0.3
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020