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SAE-AISI 8660 Steel vs. CC761S Brass

SAE-AISI 8660 steel belongs to the iron alloys classification, while CC761S brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 8660 steel and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12
8.7
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
42
Tensile Strength: Ultimate (UTS), MPa 660
540
Tensile Strength: Yield (Proof), MPa 550
340

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1450
960
Melting Onset (Solidus), °C 1410
910
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 39
27
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
43

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
27
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
45
Embodied Water, L/kg 50
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
41
Resilience: Unit (Modulus of Resilience), kJ/m3 800
530
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 23
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 10
8.0
Thermal Shock Resistance, points 19
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 0.56 to 0.64
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
78 to 83
Iron (Fe), % 96.4 to 97.6
0 to 0.6
Lead (Pb), % 0
0 to 0.8
Manganese (Mn), % 0.75 to 1.0
0 to 0.2
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
3.0 to 5.0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
8.9 to 19