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SAE-AISI 8660 Steel vs. CC754S Brass

SAE-AISI 8660 steel belongs to the iron alloys classification, while CC754S 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 CC754S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
90
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 12
11
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 660
320
Tensile Strength: Yield (Proof), MPa 550
160

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 410
120
Melting Completion (Liquidus), °C 1450
830
Melting Onset (Solidus), °C 1410
780
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 39
95
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
30

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
23
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 50
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
29
Resilience: Unit (Modulus of Resilience), kJ/m3 800
130
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 23
11
Strength to Weight: Bending, points 21
13
Thermal Diffusivity, mm2/s 10
31
Thermal Shock Resistance, points 19
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Carbon (C), % 0.56 to 0.64
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
57 to 63
Iron (Fe), % 96.4 to 97.6
0 to 0.7
Lead (Pb), % 0
0.5 to 2.5
Manganese (Mn), % 0.75 to 1.0
0 to 0.5
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 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.3
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
30.2 to 42.5