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SAE-AISI M3 Class 2 Steel vs. CR009A Copper

SAE-AISI M3 class 2 steel belongs to the iron alloys classification, while CR009A copper belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, 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 CR009A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
230

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Melting Completion (Liquidus), °C 1620
1090
Melting Onset (Solidus), °C 1570
1040
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 26
380
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 8.3
9.0
Embodied Carbon, kg CO2/kg material 12
2.6
Embodied Energy, MJ/kg 180
41
Embodied Water, L/kg 110
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 26 to 74
7.1
Strength to Weight: Bending, points 22 to 45
9.3
Thermal Diffusivity, mm2/s 7.2
110
Thermal Shock Resistance, points 24 to 69
8.1

Alloy Composition

Antimony (Sb), % 0
0 to 0.00040
Arsenic (As), % 0
0 to 0.00050
Bismuth (Bi), % 0
0 to 0.00020
Cadmium (Cd), % 0
0 to 0.00010
Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
99.99 to 100
Iron (Fe), % 75.8 to 82.3
0 to 0.0010
Lead (Pb), % 0
0 to 0.00050
Manganese (Mn), % 0.15 to 0.4
0 to 0.00050
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.0010
Phosphorus (P), % 0 to 0.030
0 to 0.0030
Selenium (Se), % 0
0 to 0.00020
Silicon (Si), % 0.2 to 0.45
0
Silver (Ag), % 0
0 to 0.0025
Sulfur (S), % 0 to 0.030
0 to 0.0015
Tellurium (Te), % 0
0 to 0.00020
Tin (Sn), % 0
0 to 0.00020
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0
Zinc (Zn), % 0
0 to 0.00010