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CR012A Copper vs. EN 1.4945 Stainless Steel

CR012A 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 CR012A 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, % 15
19 to 34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 220
640 to 740
Tensile Strength: Yield (Proof), MPa 130
290 to 550

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
920
Melting Completion (Liquidus), °C 1090
1490
Melting Onset (Solidus), °C 1040
1440
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 390
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 100
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 33
30
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.7
5.0
Embodied Energy, MJ/kg 42
73
Embodied Water, L/kg 360
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 76
210 to 760
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 6.8
22 to 25
Strength to Weight: Bending, points 9.0
20 to 22
Thermal Diffusivity, mm2/s 110
3.7
Thermal Shock Resistance, points 7.8
14 to 16

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
15.5 to 17.5
Copper (Cu), % 99.85 to 99.94
0
Iron (Fe), % 0
57.9 to 65.7
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.3 to 0.6
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
2.5 to 3.5