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C85700 Brass vs. SAE-AISI 8660 Steel

C85700 brass belongs to the copper alloys classification, while SAE-AISI 8660 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C85700 brass and the bottom bar is SAE-AISI 8660 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 17
12
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 310
660
Tensile Strength: Yield (Proof), MPa 110
550

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
410
Melting Completion (Liquidus), °C 940
1450
Melting Onset (Solidus), °C 910
1410
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 84
39
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 25
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.6
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 47
20
Embodied Water, L/kg 330
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
73
Resilience: Unit (Modulus of Resilience), kJ/m3 59
800
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 11
23
Strength to Weight: Bending, points 13
21
Thermal Diffusivity, mm2/s 27
10
Thermal Shock Resistance, points 10
19

Alloy Composition

Aluminum (Al), % 0 to 0.8
0
Carbon (C), % 0
0.56 to 0.64
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 58 to 64
0
Iron (Fe), % 0 to 0.7
96.4 to 97.6
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0 to 1.0
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 32 to 40
0
Residuals, % 0 to 1.3
0