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CR012A Copper vs. EN 1.4640 Stainless Steel

CR012A copper belongs to the copper alloys classification, while EN 1.4640 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 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
51
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 220
620 to 650
Tensile Strength: Yield (Proof), MPa 130
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
930
Melting Completion (Liquidus), °C 1090
1420
Melting Onset (Solidus), °C 1040
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 390
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 33
14
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 42
40
Embodied Water, L/kg 360
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
250 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 76
150 to 170
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 6.8
22 to 23
Strength to Weight: Bending, points 9.0
21
Thermal Diffusivity, mm2/s 110
4.0
Thermal Shock Resistance, points 7.8
14 to 15

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Copper (Cu), % 99.85 to 99.94
1.3 to 2.0
Iron (Fe), % 0
67.4 to 73.6
Manganese (Mn), % 0
1.5 to 4.0
Nickel (Ni), % 0
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.015