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C69400 Brass vs. ACI-ASTM CF8C Steel

C69400 brass belongs to the copper alloys classification, while ACI-ASTM CF8C steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C69400 brass and the bottom bar is ACI-ASTM CF8C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
77
Tensile Strength: Ultimate (UTS), MPa 570
530
Tensile Strength: Yield (Proof), MPa 270
260

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 920
1420
Melting Onset (Solidus), °C 820
1430
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 27
19
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.7
Embodied Energy, MJ/kg 44
53
Embodied Water, L/kg 300
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
180
Resilience: Unit (Modulus of Resilience), kJ/m3 340
170
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 7.7
4.3
Thermal Shock Resistance, points 20
11

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 80 to 83
0
Iron (Fe), % 0 to 0.2
61.8 to 73
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0 to 0.5
0