MakeItFrom.com
Menu (ESC)

ASTM A387 Grade 2 Steel vs. ASTM A228 Music Wire

Both ASTM A387 grade 2 steel and ASTM A228 music wire are iron alloys. They have a very high 98% 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 A387 grade 2 steel and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
710
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
12
Fatigue Strength, MPa 190 to 250
1280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 300 to 350
1470
Tensile Strength: Ultimate (UTS), MPa 470 to 550
2450
Tensile Strength: Yield (Proof), MPa 260 to 350
2050

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 50
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
87
Strength to Weight: Bending, points 17 to 19
52
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 14 to 16
79

Alloy Composition

Carbon (C), % 0.050 to 0.21
0.7 to 1.0
Chromium (Cr), % 0.5 to 0.8
0
Iron (Fe), % 97.1 to 98.3
98 to 99
Manganese (Mn), % 0.55 to 0.8
0.2 to 0.6
Molybdenum (Mo), % 0.45 to 0.6
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.15 to 0.4
0.1 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.030