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C69400 Brass vs. SAE-AISI 8660 Steel

C69400 brass belongs to the copper alloys classification, while SAE-AISI 8660 steel belongs to the iron 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 C69400 brass and the bottom bar is SAE-AISI 8660 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 17
12
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
73
Shear Strength, MPa 350
390
Tensile Strength: Ultimate (UTS), MPa 570
660
Tensile Strength: Yield (Proof), MPa 270
550

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 920
1450
Melting Onset (Solidus), °C 820
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 26
39
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 27
2.6
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.5
Embodied Energy, MJ/kg 44
20
Embodied Water, L/kg 300
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
73
Resilience: Unit (Modulus of Resilience), kJ/m3 340
800
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 7.7
10
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0
0.56 to 0.64
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 80 to 83
0
Iron (Fe), % 0 to 0.2
96.4 to 97.6
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 3.5 to 4.5
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0 to 0.5
0