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ACI-ASTM CD4MCuN Steel vs. CC765S Brass

ACI-ASTM CD4MCuN steel belongs to the iron alloys classification, while CC765S brass belongs to the copper alloys. There are 28 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 ACI-ASTM CD4MCuN steel and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 18
21
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 79
42
Tensile Strength: Ultimate (UTS), MPa 770
540
Tensile Strength: Yield (Proof), MPa 550
220

Thermal Properties

Latent Heat of Fusion, J/g 300
180
Maximum Temperature: Mechanical, °C 1100
140
Melting Completion (Liquidus), °C 1420
860
Melting Onset (Solidus), °C 1380
820
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 17
91
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
34

Otherwise Unclassified Properties

Base Metal Price, % relative 18
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.5
3.0
Embodied Energy, MJ/kg 49
51
Embodied Water, L/kg 180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
90
Resilience: Unit (Modulus of Resilience), kJ/m3 760
220
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 4.5
28
Thermal Shock Resistance, points 21
17

Alloy Composition

Aluminum (Al), % 0
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 24.5 to 26.5
0
Copper (Cu), % 2.7 to 3.3
51 to 65
Iron (Fe), % 59.5 to 66.3
0.5 to 2.0
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 1.0
0.3 to 3.0
Molybdenum (Mo), % 1.7 to 2.3
0
Nickel (Ni), % 4.7 to 6.0
0 to 6.0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
19.8 to 47.7