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SAE-AISI T4 Steel vs. C18700 Copper

SAE-AISI T4 steel belongs to the iron alloys classification, while C18700 copper belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T4 steel and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 80
43
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Melting Completion (Liquidus), °C 1810
1080
Melting Onset (Solidus), °C 1750
950
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 21
380
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 55
30
Density, g/cm3 9.4
9.0
Embodied Carbon, kg CO2/kg material 8.5
2.6
Embodied Energy, MJ/kg 130
41
Embodied Water, L/kg 120
310

Common Calculations

Stiffness to Weight: Axial, points 12
7.1
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 24 to 64
9.0 to 10
Strength to Weight: Bending, points 20 to 39
11 to 12
Thermal Diffusivity, mm2/s 5.4
110
Thermal Shock Resistance, points 24 to 64
10 to 12

Alloy Composition

Carbon (C), % 0.7 to 0.8
0
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
98 to 99.2
Iron (Fe), % 66.3 to 72.3
0
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0.1 to 0.4
0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0
Residuals, % 0
0 to 0.5