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EN 1.7703 Steel vs. ASTM A228 Music Wire

Both EN 1.7703 steel and ASTM A228 music wire 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 EN 1.7703 steel and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
710
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
12
Fatigue Strength, MPa 320 to 340
1280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Shear Strength, MPa 420 to 430
1470
Tensile Strength: Ultimate (UTS), MPa 670 to 690
2450
Tensile Strength: Yield (Proof), MPa 460 to 500
2050

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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