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ACI-ASTM CN7M Steel vs. CR024A Copper

ACI-ASTM CN7M steel belongs to the iron alloys classification, while CR024A copper belongs to the copper 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 ACI-ASTM CN7M steel and the bottom bar is CR024A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 44
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 480
230
Tensile Strength: Yield (Proof), MPa 200
140

Thermal Properties

Latent Heat of Fusion, J/g 310
210
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1410
1090
Melting Onset (Solidus), °C 1450
1040
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 21
370
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
100
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
100

Otherwise Unclassified Properties

Base Metal Price, % relative 32
31
Density, g/cm3 8.1
9.0
Embodied Carbon, kg CO2/kg material 5.6
2.6
Embodied Energy, MJ/kg 78
41
Embodied Water, L/kg 210
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
31
Resilience: Unit (Modulus of Resilience), kJ/m3 110
83
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 17
7.1
Strength to Weight: Bending, points 17
9.3
Thermal Diffusivity, mm2/s 5.6
110
Thermal Shock Resistance, points 12
8.1

Alloy Composition

Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
99.9 to 99.985
Iron (Fe), % 37.4 to 48.5
0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0
Phosphorus (P), % 0 to 0.040
0.015 to 0.040
Silicon (Si), % 0 to 1.5
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.040
0