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ASTM A228 Music Wire vs. AWS ERNiCrMo-4

ASTM A228 music wire belongs to the iron alloys classification, while AWS ERNiCrMo-4 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is AWS ERNiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 12
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
84
Tensile Strength: Ultimate (UTS), MPa 2450
790

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1450
1590
Melting Onset (Solidus), °C 1410
1530
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
70
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 1.4
13
Embodied Energy, MJ/kg 19
170
Embodied Water, L/kg 45
280

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 87
24
Strength to Weight: Bending, points 52
21
Thermal Shock Resistance, points 79
22

Alloy Composition

Carbon (C), % 0.7 to 1.0
0 to 0.020
Chromium (Cr), % 0
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 98 to 99
4.0 to 7.0
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
15 to 17
Nickel (Ni), % 0
50 to 63.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.3
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5