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C82200 Copper vs. ASTM A231 Spring Steel

C82200 copper belongs to the copper alloys classification, while ASTM A231 spring steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C82200 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, % 8.0 to 20
14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Tensile Strength: Ultimate (UTS), MPa 390 to 660
1790
Tensile Strength: Yield (Proof), MPa 210 to 520
1570

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 230
420
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 1040
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 180
52
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 46
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.3
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
2.0
Embodied Energy, MJ/kg 74
28
Embodied Water, L/kg 310
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 66
230
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 12 to 20
64
Strength to Weight: Bending, points 13 to 19
42
Thermal Diffusivity, mm2/s 53
14
Thermal Shock Resistance, points 14 to 23
53

Alloy Composition

Beryllium (Be), % 0.35 to 0.8
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Cobalt (Co), % 0 to 0.3
0
Copper (Cu), % 97.4 to 98.7
0
Iron (Fe), % 0
96.7 to 97.7
Manganese (Mn), % 0
0.7 to 0.9
Nickel (Ni), % 1.0 to 2.0
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Vanadium (V), % 0
0.15 to 0.3
Residuals, % 0 to 0.5
0