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C47940 Brass vs. ACI-ASTM CF8C Steel

C47940 brass belongs to the copper alloys classification, while ACI-ASTM CF8C steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C47940 brass and the bottom bar is ACI-ASTM CF8C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 14 to 34
40
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 380 to 520
530
Tensile Strength: Yield (Proof), MPa 160 to 390
260

Thermal Properties

Latent Heat of Fusion, J/g 170
300
Maximum Temperature: Mechanical, °C 130
980
Melting Completion (Liquidus), °C 850
1420
Melting Onset (Solidus), °C 800
1430
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 110
16
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
19
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.7
Embodied Energy, MJ/kg 47
53
Embodied Water, L/kg 330
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 740
170
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13 to 17
19
Strength to Weight: Bending, points 14 to 17
19
Thermal Diffusivity, mm2/s 36
4.3
Thermal Shock Resistance, points 13 to 17
11

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 63 to 66
0
Iron (Fe), % 0.1 to 1.0
61.8 to 73
Lead (Pb), % 1.0 to 2.0
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0.1 to 0.5
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 1.2 to 2.0
0
Zinc (Zn), % 28.1 to 34.6
0
Residuals, % 0 to 0.4
0