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ASTM A228 Music Wire vs. S21800 Stainless Steel

Both ASTM A228 music wire and S21800 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
40
Fatigue Strength, MPa 1280
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Shear Strength, MPa 1470
510
Tensile Strength: Ultimate (UTS), MPa 2450
740
Tensile Strength: Yield (Proof), MPa 2050
390

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
45
Embodied Water, L/kg 45
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 87
27
Strength to Weight: Bending, points 52
24
Thermal Shock Resistance, points 79
17

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 98 to 99
59.1 to 65.4
Manganese (Mn), % 0.2 to 0.6
7.0 to 9.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0.1 to 0.3
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030