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SAE-AISI A9 Steel vs. C34200 Brass

SAE-AISI A9 steel belongs to the iron alloys classification, while C34200 brass belongs to the copper 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 SAE-AISI A9 steel and the bottom bar is C34200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 74
40
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Melting Completion (Liquidus), °C 1460
910
Melting Onset (Solidus), °C 1410
890
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 35
120
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
26
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
29

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
24
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.7
2.6
Embodied Energy, MJ/kg 70
45
Embodied Water, L/kg 82
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 28 to 73
13 to 22
Strength to Weight: Bending, points 24 to 46
14 to 20
Thermal Diffusivity, mm2/s 9.6
37
Thermal Shock Resistance, points 25 to 66
12 to 22

Alloy Composition

Carbon (C), % 0.45 to 0.55
0
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
62 to 65
Iron (Fe), % 87 to 90.5
0 to 0.1
Lead (Pb), % 0
1.5 to 2.5
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
Vanadium (V), % 0.8 to 1.4
0
Zinc (Zn), % 0
32 to 36.5
Residuals, % 0
0 to 0.4