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C68400 Brass vs. ACI-ASTM CF8C Steel

C68400 brass belongs to the copper alloys classification, while ACI-ASTM CF8C steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is ACI-ASTM CF8C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 18
40
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 540
530
Tensile Strength: Yield (Proof), MPa 310
260

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 130
980
Melting Completion (Liquidus), °C 840
1420
Melting Onset (Solidus), °C 820
1430
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 66
16
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.7
Embodied Energy, MJ/kg 47
53
Embodied Water, L/kg 320
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
180
Resilience: Unit (Modulus of Resilience), kJ/m3 460
170
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 21
4.3
Thermal Shock Resistance, points 18
11

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 59 to 64
0
Iron (Fe), % 0 to 1.0
61.8 to 73
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0.2 to 1.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.5
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0.030 to 0.3
0 to 0.040
Silicon (Si), % 1.5 to 2.5
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0
Residuals, % 0 to 0.5
0