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C43400 Brass vs. SAE-AISI A4 Steel

C43400 brass belongs to the copper alloys classification, while SAE-AISI A4 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C43400 brass and the bottom bar is SAE-AISI A4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
73
Tensile Strength: Ultimate (UTS), MPa 310 to 690
710 to 2050

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Melting Completion (Liquidus), °C 1020
1450
Melting Onset (Solidus), °C 990
1410
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 140
40
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 32
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 28
3.9
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.8
Embodied Energy, MJ/kg 44
24
Embodied Water, L/kg 320
59

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10 to 22
25 to 73
Strength to Weight: Bending, points 12 to 20
23 to 46
Thermal Diffusivity, mm2/s 41
11
Thermal Shock Resistance, points 11 to 24
23 to 67

Alloy Composition

Carbon (C), % 0
1.0 to 1.1
Chromium (Cr), % 0
0.9 to 2.2
Copper (Cu), % 84 to 87
0 to 0.25
Iron (Fe), % 0 to 0.050
92 to 95.5
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
1.8 to 2.2
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0.4 to 1.0
0
Zinc (Zn), % 11.4 to 15.6
0
Residuals, % 0 to 0.5
0