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AISI 409 Stainless Steel vs. C87900 Brass

AISI 409 stainless steel belongs to the iron alloys classification, while C87900 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 24
25
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 75
41
Tensile Strength: Ultimate (UTS), MPa 420
480
Tensile Strength: Yield (Proof), MPa 200
240

Thermal Properties

Latent Heat of Fusion, J/g 270
190
Maximum Temperature: Mechanical, °C 710
130
Melting Completion (Liquidus), °C 1450
930
Melting Onset (Solidus), °C 1400
900
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 25
120
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
15
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
17

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
24
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 28
46
Embodied Water, L/kg 94
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
100
Resilience: Unit (Modulus of Resilience), kJ/m3 100
270
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 15
17
Strength to Weight: Bending, points 16
17
Thermal Diffusivity, mm2/s 6.7
37
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 10.5 to 11.7
0
Copper (Cu), % 0
63 to 69.2
Iron (Fe), % 84.9 to 89.5
0 to 0.4
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0 to 1.0
0 to 0.15
Nickel (Ni), % 0 to 0.5
0 to 0.5
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 1.0
0.8 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.75
0
Zinc (Zn), % 0
30 to 36