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ASTM A228 Music Wire vs. AISI 403 Stainless Steel

Both ASTM A228 music wire and AISI 403 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
16 to 25
Fatigue Strength, MPa 1280
200 to 340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 1470
340 to 480
Tensile Strength: Ultimate (UTS), MPa 2450
530 to 780
Tensile Strength: Yield (Proof), MPa 2050
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
740
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
28
Thermal Expansion, µm/m-K 12
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.9
Embodied Energy, MJ/kg 19
27
Embodied Water, L/kg 45
99

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
110 to 120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 87
19 to 28
Strength to Weight: Bending, points 52
19 to 24
Thermal Diffusivity, mm2/s 13
7.6
Thermal Shock Resistance, points 79
20 to 29

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.15
Chromium (Cr), % 0
11.5 to 13
Iron (Fe), % 98 to 99
84.7 to 88.5
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Nickel (Ni), % 0
0 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030