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C17300 Copper vs. EN 1.4945 Stainless Steel

C17300 copper belongs to the copper alloys classification, while EN 1.4945 stainless 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 C17300 copper and the bottom bar is EN 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 3.0 to 23
19 to 34
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 45
77
Shear Strength, MPa 320 to 790
430 to 460
Tensile Strength: Ultimate (UTS), MPa 500 to 1380
640 to 740
Tensile Strength: Yield (Proof), MPa 160 to 1200
290 to 550

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 270
920
Melting Completion (Liquidus), °C 980
1490
Melting Onset (Solidus), °C 870
1440
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 110
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 23
3.2

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.1
Embodied Carbon, kg CO2/kg material 9.4
5.0
Embodied Energy, MJ/kg 150
73
Embodied Water, L/kg 310
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 88
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 5410
210 to 760
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 16 to 44
22 to 25
Strength to Weight: Bending, points 16 to 31
20 to 22
Thermal Diffusivity, mm2/s 32
3.7
Thermal Shock Resistance, points 17 to 48
14 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 1.8 to 2.0
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
15.5 to 17.5
Copper (Cu), % 95.5 to 97.8
0
Iron (Fe), % 0 to 0.4
57.9 to 65.7
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0.2 to 0.6
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.2
0.3 to 0.6
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
2.5 to 3.5
Residuals, % 0 to 0.5
0