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ASTM A228 Music Wire vs. S44625 Stainless Steel

Both ASTM A228 music wire and S44625 stainless steel are iron alloys. They have 72% 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 S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
22
Fatigue Strength, MPa 1280
240
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
80
Shear Strength, MPa 1470
370
Tensile Strength: Ultimate (UTS), MPa 2450
590
Tensile Strength: Yield (Proof), MPa 2050
360

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
17
Thermal Expansion, µm/m-K 12
11

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
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 45
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
110
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 87
21
Strength to Weight: Bending, points 52
20
Thermal Diffusivity, mm2/s 13
4.6
Thermal Shock Resistance, points 79
19

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.010
Chromium (Cr), % 0
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 98 to 99
69.4 to 74.3
Manganese (Mn), % 0.2 to 0.6
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0.1 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020