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ASTM A228 Music Wire vs. SAE-AISI 1137 Steel

Both ASTM A228 music wire and SAE-AISI 1137 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is SAE-AISI 1137 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
11 to 17
Fatigue Strength, MPa 1280
250 to 400
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 1470
430 to 460
Tensile Strength: Ultimate (UTS), MPa 2450
700 to 760
Tensile Strength: Yield (Proof), MPa 2050
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
51
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
10
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 45
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
81 to 100
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 87
25 to 27
Strength to Weight: Bending, points 52
22 to 24
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 79
21 to 23

Alloy Composition

Carbon (C), % 0.7 to 1.0
0.32 to 0.39
Iron (Fe), % 98 to 99
97.8 to 98.3
Manganese (Mn), % 0.2 to 0.6
1.4 to 1.7
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.3
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13