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C69400 Brass vs. ACI-ASTM CD4MCu Steel

C69400 brass belongs to the copper alloys classification, while ACI-ASTM CD4MCu steel belongs to the iron 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 C69400 brass and the bottom bar is ACI-ASTM CD4MCu steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
18
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 42
79
Tensile Strength: Ultimate (UTS), MPa 570
770
Tensile Strength: Yield (Proof), MPa 270
550

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 920
1430
Melting Onset (Solidus), °C 820
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 26
17
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 27
18
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.5
Embodied Energy, MJ/kg 44
49
Embodied Water, L/kg 300
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
130
Resilience: Unit (Modulus of Resilience), kJ/m3 340
760
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 18
24
Thermal Diffusivity, mm2/s 7.7
4.5
Thermal Shock Resistance, points 20
21

Alloy Composition

Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
24.5 to 26.5
Copper (Cu), % 80 to 83
2.8 to 3.3
Iron (Fe), % 0 to 0.2
59.9 to 66.3
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.3
Nickel (Ni), % 0
4.8 to 6.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 1.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0 to 0.5
0