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ACI-ASTM CG8M Steel vs. C46500 Brass

ACI-ASTM CG8M steel belongs to the iron alloys classification, while C46500 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG8M steel and the bottom bar is C46500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 45
18 to 50
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 79
40
Tensile Strength: Ultimate (UTS), MPa 550
380 to 610
Tensile Strength: Yield (Proof), MPa 300
190 to 490

Thermal Properties

Latent Heat of Fusion, J/g 300
170
Maximum Temperature: Mechanical, °C 1020
120
Melting Completion (Liquidus), °C 1450
900
Melting Onset (Solidus), °C 1400
890
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 16
120
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
29

Otherwise Unclassified Properties

Base Metal Price, % relative 20
23
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.1
2.7
Embodied Energy, MJ/kg 56
47
Embodied Water, L/kg 160
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
99 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170 to 1170
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 19
13 to 21
Strength to Weight: Bending, points 19
15 to 20
Thermal Diffusivity, mm2/s 4.3
38
Thermal Shock Resistance, points 12
13 to 20

Alloy Composition

Arsenic (As), % 0
0.020 to 0.060
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
59 to 62
Iron (Fe), % 58.8 to 70
0 to 0.1
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 9.0 to 13
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0.5 to 1.0
Zinc (Zn), % 0
36.2 to 40.5
Residuals, % 0
0 to 0.4