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EN 1.6958 Steel vs. CR018A Copper

EN 1.6958 steel belongs to the iron alloys classification, while CR018A copper belongs to the copper alloys. There are 28 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 EN 1.6958 steel and the bottom bar is CR018A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 16
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
43
Tensile Strength: Ultimate (UTS), MPa 1140
220
Tensile Strength: Yield (Proof), MPa 1070
130

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Maximum Temperature: Mechanical, °C 450
200
Melting Completion (Liquidus), °C 1460
1090
Melting Onset (Solidus), °C 1420
1040
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 47
390
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
100
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
33
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 27
42
Embodied Water, L/kg 60
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
29
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
76
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 40
6.8
Strength to Weight: Bending, points 31
9.0
Thermal Diffusivity, mm2/s 13
110
Thermal Shock Resistance, points 39
7.8

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.25 to 0.3
0
Chromium (Cr), % 1.2 to 1.7
0
Copper (Cu), % 0
99.914 to 99.94
Iron (Fe), % 92.6 to 94.5
0
Manganese (Mn), % 0.2 to 0.5
0
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.15 to 0.3
0
Silver (Ag), % 0
0.060 to 0.080
Sulfur (S), % 0 to 0.015
0
Vanadium (V), % 0 to 0.12
0