AWS E240 vs. ASTM A228 Music Wire

Both AWS E240 and ASTM A228 music wire are iron alloys. They have 64% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E240 and the bottom bar is ASTM A228 music wire.

AWS E240 (W32410) Weld Metal ASTM A228 (SWP-A, K08500) Music Wire

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		17
Elongation at Break, %		12

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		77
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		770
Tensile Strength: Ultimate (UTS), MPa		2450

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		250

Melting Completion (Liquidus), °C		1390
Melting Completion (Liquidus), °C		1450

Melting Onset (Solidus), °C		1350
Melting Onset (Solidus), °C		1410

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		470

Thermal Conductivity, W/m-K		15
Thermal Conductivity, W/m-K		49

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		14
Base Metal Price, % relative		1.8

Density, g/cm³		7.7
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		3.0
Embodied Carbon, kg CO₂/kg material		1.4

Embodied Energy, MJ/kg		42
Embodied Energy, MJ/kg		19

Embodied Water, L/kg		160
Embodied Water, L/kg		45

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		28
Strength to Weight: Axial, points		87

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		52

Thermal Diffusivity, mm²/s		3.9
Thermal Diffusivity, mm²/s		13

Thermal Shock Resistance, points		19
Thermal Shock Resistance, points		79

Alloy Composition

Carbon (C), %		0 to 0.060
Carbon (C), %		0.7 to 1.0

Chromium (Cr), %		17 to 19
Chromium (Cr), %		0

Copper (Cu), %		0 to 0.75
Copper (Cu), %		0

Iron (Fe), %		58.6 to 68.4
Iron (Fe), %		98 to 99

Manganese (Mn), %		10.5 to 13.5
Manganese (Mn), %		0.2 to 0.6

Molybdenum (Mo), %		0 to 0.75
Molybdenum (Mo), %		0

Nickel (Ni), %		4.0 to 6.0
Nickel (Ni), %		0

Nitrogen (N), %		0.1 to 0.3
Nitrogen (N), %		0

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.025

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0.1 to 0.3

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.030