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SAE-AISI 9254 Steel vs. C69400 Brass

SAE-AISI 9254 steel belongs to the iron alloys classification, while C69400 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9254 steel and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
17
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
42
Shear Strength, MPa 410
350
Tensile Strength: Ultimate (UTS), MPa 660
570
Tensile Strength: Yield (Proof), MPa 410
270

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1440
920
Melting Onset (Solidus), °C 1400
820
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 46
26
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
27
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
44
Embodied Water, L/kg 49
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80
Resilience: Unit (Modulus of Resilience), kJ/m3 450
340
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 24
19
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 12
7.7
Thermal Shock Resistance, points 20
20

Alloy Composition

Carbon (C), % 0.51 to 0.59
0
Chromium (Cr), % 0.6 to 0.8
0
Copper (Cu), % 0
80 to 83
Iron (Fe), % 96.1 to 97.1
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0.6 to 0.8
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 1.2 to 1.6
3.5 to 4.5
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
11.5 to 16.5
Residuals, % 0
0 to 0.5