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C17300 Copper vs. ASTM A387 Grade 12 Steel

C17300 copper belongs to the copper alloys classification, while ASTM A387 grade 12 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C17300 copper and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 3.0 to 23
25
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 45
73
Shear Strength, MPa 320 to 790
300 to 330
Tensile Strength: Ultimate (UTS), MPa 500 to 1380
470 to 520
Tensile Strength: Yield (Proof), MPa 160 to 1200
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 230
250
Maximum Temperature: Mechanical, °C 270
430
Melting Completion (Liquidus), °C 980
1470
Melting Onset (Solidus), °C 870
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 110
44
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 23
8.3

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 9.4
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 310
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 88
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 5410
180 to 250
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 16 to 44
16 to 18
Strength to Weight: Bending, points 16 to 31
17 to 18
Thermal Diffusivity, mm2/s 32
12
Thermal Shock Resistance, points 17 to 48
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 1.8 to 2.0
0
Carbon (C), % 0
0.050 to 0.17
Chromium (Cr), % 0
0.8 to 1.2
Copper (Cu), % 95.5 to 97.8
0
Iron (Fe), % 0 to 0.4
97 to 98.2
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0.4 to 0.65
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0.2 to 0.6
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
Residuals, % 0 to 0.5
0