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AISI 422 Stainless Steel vs. ASTM A228 Music Wire

Both AISI 422 stainless steel and ASTM A228 music wire are iron alloys. They have 85% 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 AISI 422 stainless steel and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
710
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
12
Fatigue Strength, MPa 410 to 500
1280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 560 to 660
1470
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
2450
Tensile Strength: Yield (Proof), MPa 670 to 870
2050

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 650
400
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1470
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
49
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 44
19
Embodied Water, L/kg 100
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 38
87
Strength to Weight: Bending, points 26 to 30
52
Thermal Diffusivity, mm2/s 6.4
13
Thermal Shock Resistance, points 33 to 39
79

Alloy Composition

Carbon (C), % 0.2 to 0.25
0.7 to 1.0
Chromium (Cr), % 11 to 12.5
0
Iron (Fe), % 81.9 to 85.8
98 to 99
Manganese (Mn), % 0.5 to 1.0
0.2 to 0.6
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0.5 to 1.0
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0.1 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0