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SAE-AISI A4 Steel vs. C99700 Brass

SAE-AISI A4 steel belongs to the iron alloys classification, while C99700 brass belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A4 steel and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
46
Tensile Strength: Ultimate (UTS), MPa 710 to 2050
380

Thermal Properties

Latent Heat of Fusion, J/g 250
200
Melting Completion (Liquidus), °C 1450
900
Melting Onset (Solidus), °C 1410
880
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
25
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.8
3.3
Embodied Energy, MJ/kg 24
53
Embodied Water, L/kg 59
320

Common Calculations

Stiffness to Weight: Axial, points 13
8.3
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 25 to 73
13
Strength to Weight: Bending, points 23 to 46
14
Thermal Shock Resistance, points 23 to 67
11

Alloy Composition

Aluminum (Al), % 0
0.5 to 3.0
Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 0.9 to 2.2
0
Copper (Cu), % 0 to 0.25
54 to 65.5
Iron (Fe), % 92 to 95.5
0 to 1.0
Lead (Pb), % 0
0 to 2.0
Manganese (Mn), % 1.8 to 2.2
11 to 15
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
4.0 to 6.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
19 to 25
Residuals, % 0
0 to 0.3