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AISI 409 Stainless Steel vs. CC751S Brass

AISI 409 stainless steel belongs to the iron alloys classification, while CC751S 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 CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 24
5.6
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 75
40
Tensile Strength: Ultimate (UTS), MPa 420
450
Tensile Strength: Yield (Proof), MPa 200
320

Thermal Properties

Latent Heat of Fusion, J/g 270
190
Maximum Temperature: Mechanical, °C 710
130
Melting Completion (Liquidus), °C 1450
850
Melting Onset (Solidus), °C 1400
810
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 25
110
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
25
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
28

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
2.8
Embodied Energy, MJ/kg 28
46
Embodied Water, L/kg 94
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
23
Resilience: Unit (Modulus of Resilience), kJ/m3 100
480
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 15
15
Strength to Weight: Bending, points 16
16
Thermal Diffusivity, mm2/s 6.7
35
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 10.5 to 11.7
0
Copper (Cu), % 0
62.7 to 66
Iron (Fe), % 84.9 to 89.5
0.25 to 0.5
Lead (Pb), % 0
0.8 to 2.2
Manganese (Mn), % 0 to 1.0
0 to 0.15
Nickel (Ni), % 0 to 0.5
0 to 0.8
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0.65 to 1.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.8
Titanium (Ti), % 0 to 0.75
0
Zinc (Zn), % 0
27.9 to 35.6