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ASTM A228 Music Wire vs. EN 1.8818 Steel

Both ASTM A228 music wire and EN 1.8818 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 EN 1.8818 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
27
Fatigue Strength, MPa 1280
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 1470
280
Tensile Strength: Ultimate (UTS), MPa 2450
440
Tensile Strength: Yield (Proof), MPa 2050
270

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
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 45
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 87
16
Strength to Weight: Bending, points 52
16
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 79
13

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.034
Carbon (C), % 0.7 to 1.0
0 to 0.15
Chromium (Cr), % 0
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 98 to 99
95.9 to 99.985
Manganese (Mn), % 0.2 to 0.6
0 to 1.6
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.017
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.1 to 0.3
0 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.1