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AISI 418 Stainless Steel vs. C87500 Brass

AISI 418 stainless steel belongs to the iron alloys classification, while C87500 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17
18
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
42
Tensile Strength: Ultimate (UTS), MPa 1100
460
Tensile Strength: Yield (Proof), MPa 850
190

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 770
170
Melting Completion (Liquidus), °C 1500
920
Melting Onset (Solidus), °C 1460
820
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 25
28
Thermal Expansion, µm/m-K 10
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
27
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 41
44
Embodied Water, L/kg 110
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
67
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
160
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 38
16
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 6.7
8.3
Thermal Shock Resistance, points 40
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.15 to 0.2
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
79 to 85
Iron (Fe), % 78.5 to 83.6
0
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
3.0 to 5.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
12 to 16
Residuals, % 0
0 to 0.5