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SAE-AISI A9 Steel vs. C44300 Brass

SAE-AISI A9 steel belongs to the iron alloys classification, while C44300 brass belongs to the copper alloys. There are 23 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 SAE-AISI A9 steel and the bottom bar is C44300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
41
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
350

Thermal Properties

Latent Heat of Fusion, J/g 280
180
Melting Completion (Liquidus), °C 1460
940
Melting Onset (Solidus), °C 1410
900
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 35
110
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
25
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
27

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
26
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 4.7
2.8
Embodied Energy, MJ/kg 70
46
Embodied Water, L/kg 82
330

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 28 to 73
12
Strength to Weight: Bending, points 24 to 46
13
Thermal Diffusivity, mm2/s 9.6
35
Thermal Shock Resistance, points 25 to 66
12

Alloy Composition

Arsenic (As), % 0
0.020 to 0.060
Carbon (C), % 0.45 to 0.55
0
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
70 to 73
Iron (Fe), % 87 to 90.5
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 1.3 to 1.8
0
Nickel (Ni), % 1.3 to 1.8
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.0 to 1.2
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.9 to 1.2
Vanadium (V), % 0.8 to 1.4
0
Zinc (Zn), % 0
25.2 to 29.1
Residuals, % 0
0 to 0.4