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SAE-AISI M50 Steel vs. C68700 Brass

SAE-AISI M50 steel belongs to the iron alloys classification, while C68700 brass belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M50 steel and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 75
41
Tensile Strength: Ultimate (UTS), MPa 720 to 2250
390

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Melting Completion (Liquidus), °C 1480
970
Melting Onset (Solidus), °C 1440
930
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 35
100
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
23
Electrical Conductivity: Equal Weight (Specific), % IACS 10
25

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
26
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 5.1
2.8
Embodied Energy, MJ/kg 74
46
Embodied Water, L/kg 83
340

Common Calculations

Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 26 to 80
13
Strength to Weight: Bending, points 23 to 49
14
Thermal Diffusivity, mm2/s 9.7
30
Thermal Shock Resistance, points 21 to 66
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Carbon (C), % 0.78 to 0.88
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
76 to 79
Iron (Fe), % 87 to 90.4
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.15 to 0.45
0
Molybdenum (Mo), % 3.9 to 4.8
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.8 to 1.3
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5