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ASTM A228 Music Wire vs. S30415 Stainless Steel

Both ASTM A228 music wire and S30415 stainless steel are iron alloys. They have 70% 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 S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
45
Fatigue Strength, MPa 1280
300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 1470
470
Tensile Strength: Ultimate (UTS), MPa 2450
670
Tensile Strength: Yield (Proof), MPa 2050
330

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
21
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 45
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 87
24
Strength to Weight: Bending, points 52
22
Thermal Diffusivity, mm2/s 13
5.6
Thermal Shock Resistance, points 79
15

Alloy Composition

Carbon (C), % 0.7 to 1.0
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Iron (Fe), % 98 to 99
67.8 to 71.8
Manganese (Mn), % 0.2 to 0.6
0 to 0.8
Nickel (Ni), % 0
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.1 to 0.3
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030