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SAE-AISI 4150 Steel vs. C99400 Brass

SAE-AISI 4150 steel belongs to the iron alloys classification, while C99400 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4150 steel and the bottom bar is C99400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
44
Tensile Strength: Ultimate (UTS), MPa 660 to 1310
460 to 550
Tensile Strength: Yield (Proof), MPa 380 to 1220
230 to 370

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 420
200
Melting Completion (Liquidus), °C 1460
1070
Melting Onset (Solidus), °C 1420
1020
Specific Heat Capacity, J/kg-K 470
400
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
17
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
30
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
45
Embodied Water, L/kg 51
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 3930
230 to 590
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 24 to 47
15 to 17
Strength to Weight: Bending, points 22 to 34
15 to 17
Thermal Shock Resistance, points 19 to 39
16 to 19

Alloy Composition

Aluminum (Al), % 0
0.5 to 2.0
Carbon (C), % 0.48 to 0.53
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
83.5 to 96.5
Iron (Fe), % 96.7 to 97.7
1.0 to 3.0
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0.75 to 1.0
0 to 0.5
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
1.0 to 3.5
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0.5 to 2.0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0.5 to 5.0
Residuals, % 0
0 to 0.3