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SAE-AISI M2 Steel vs. C90500 Gun Metal

SAE-AISI M2 steel belongs to the iron alloys classification, while C90500 gun metal belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is C90500 gun metal.

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
40
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
320

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Melting Completion (Liquidus), °C 1610
1000
Melting Onset (Solidus), °C 1570
850
Specific Heat Capacity, J/kg-K 440
370
Thermal Conductivity, W/m-K 22
75
Thermal Expansion, µm/m-K 10
18

Otherwise Unclassified Properties

Base Metal Price, % relative 24
35
Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 8.8
3.6
Embodied Energy, MJ/kg 130
59
Embodied Water, L/kg 98
390

Common Calculations

Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 25 to 71
10
Strength to Weight: Bending, points 22 to 44
12
Thermal Diffusivity, mm2/s 5.9
23
Thermal Shock Resistance, points 27 to 76
12

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 0.78 to 1.1
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
86 to 89
Iron (Fe), % 78.5 to 83.4
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 1.5
Silicon (Si), % 0.2 to 0.45
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0
Zinc (Zn), % 0
1.0 to 3.0
Residuals, % 0
0 to 0.3