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SAE-AISI 8660 Steel vs. C85400 Brass

SAE-AISI 8660 steel belongs to the iron alloys classification, while C85400 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 C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
55
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 12
23
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 660
220
Tensile Strength: Yield (Proof), MPa 550
85

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 410
130
Melting Completion (Liquidus), °C 1450
940
Melting Onset (Solidus), °C 1410
940
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 39
89
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
20
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
22

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
25
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
46
Embodied Water, L/kg 50
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
40
Resilience: Unit (Modulus of Resilience), kJ/m3 800
35
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 23
7.5
Strength to Weight: Bending, points 21
9.9
Thermal Diffusivity, mm2/s 10
28
Thermal Shock Resistance, points 19
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0.56 to 0.64
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
65 to 70
Iron (Fe), % 96.4 to 97.6
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
Manganese (Mn), % 0.75 to 1.0
0
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
Silicon (Si), % 0.15 to 0.35
0 to 0.050
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
24 to 32
Residuals, % 0
0 to 1.1