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ASTM A228 Music Wire vs. EN 1.7703 Steel

Both ASTM A228 music wire and EN 1.7703 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.7703 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
20
Fatigue Strength, MPa 1280
320 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
74
Shear Strength, MPa 1470
420 to 430
Tensile Strength: Ultimate (UTS), MPa 2450
670 to 690
Tensile Strength: Yield (Proof), MPa 2050
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
460
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.2
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.5
Embodied Energy, MJ/kg 19
35
Embodied Water, L/kg 45
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
120 to 130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 87
24
Strength to Weight: Bending, points 52
22
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 79
19 to 20

Alloy Composition

Carbon (C), % 0.7 to 1.0
0.11 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 98 to 99
94.6 to 96.4
Manganese (Mn), % 0.2 to 0.6
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0.1 to 0.3
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35