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SAE-AISI M3 Class 2 Steel vs. C55180 Copper

SAE-AISI M3 class 2 steel belongs to the iron alloys classification, while C55180 copper belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 2 steel and the bottom bar is C55180 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 77
41
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
200

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Melting Completion (Liquidus), °C 1620
920
Melting Onset (Solidus), °C 1570
710
Specific Heat Capacity, J/kg-K 440
400
Thermal Conductivity, W/m-K 26
200
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 12
2.5
Embodied Energy, MJ/kg 180
39
Embodied Water, L/kg 110
290

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 26 to 74
6.4
Strength to Weight: Bending, points 22 to 45
8.8
Thermal Diffusivity, mm2/s 7.2
56
Thermal Shock Resistance, points 24 to 69
7.9

Alloy Composition

Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
94.7 to 95.2
Iron (Fe), % 75.8 to 82.3
0
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
4.8 to 5.2
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0
Residuals, % 0
0 to 0.15