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C14500 Copper vs. ASTM A231 Spring Steel

C14500 copper belongs to the copper alloys classification, while ASTM A231 spring steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C14500 copper and the bottom bar is ASTM A231 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 12 to 50
14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
73
Shear Strength, MPa 150 to 190
1080
Tensile Strength: Ultimate (UTS), MPa 220 to 330
1790
Tensile Strength: Yield (Proof), MPa 69 to 260
1570

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
420
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 1050
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 360
52
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 94
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 95
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 33
2.3
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 42
28
Embodied Water, L/kg 310
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 85
230
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 6.8 to 10
64
Strength to Weight: Bending, points 9.1 to 12
42
Thermal Diffusivity, mm2/s 100
14
Thermal Shock Resistance, points 8.0 to 12
53

Alloy Composition

Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 99.2 to 99.596
0
Iron (Fe), % 0
96.7 to 97.7
Manganese (Mn), % 0
0.7 to 0.9
Phosphorus (P), % 0.0040 to 0.012
0 to 0.040
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tellurium (Te), % 0.4 to 0.7
0
Vanadium (V), % 0
0.15 to 0.3