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SAE-AISI M3 Class 2 Steel vs. C66100 Bronze

SAE-AISI M3 class 2 steel belongs to the iron alloys classification, while C66100 bronze 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 C66100 bronze.

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
410 to 790

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1620
1050
Melting Onset (Solidus), °C 1570
1000
Specific Heat Capacity, J/kg-K 440
400
Thermal Conductivity, W/m-K 26
34
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.3
8.7
Embodied Carbon, kg CO2/kg material 12
2.6
Embodied Energy, MJ/kg 180
42
Embodied Water, L/kg 110
300

Common Calculations

Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 26 to 74
13 to 25
Strength to Weight: Bending, points 22 to 45
14 to 22
Thermal Diffusivity, mm2/s 7.2
9.7
Thermal Shock Resistance, points 24 to 69
15 to 29

Alloy Composition

Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
92 to 97
Iron (Fe), % 75.8 to 82.3
0 to 0.25
Lead (Pb), % 0
0.2 to 0.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
2.8 to 3.5
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.5