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AISI 409Cb Stainless Steel vs. C72900 Copper-nickel

AISI 409Cb stainless steel belongs to the iron alloys classification, while C72900 copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 409Cb stainless steel and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 24
6.0 to 20
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
45
Shear Strength, MPa 270
540 to 630
Tensile Strength: Ultimate (UTS), MPa 420
870 to 1080
Tensile Strength: Yield (Proof), MPa 200
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Maximum Temperature: Mechanical, °C 710
210
Melting Completion (Liquidus), °C 1450
1120
Melting Onset (Solidus), °C 1410
950
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 25
29
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
39
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.2
4.6
Embodied Energy, MJ/kg 31
72
Embodied Water, L/kg 94
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 100
2030 to 3490
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 15
27 to 34
Strength to Weight: Bending, points 16
23 to 27
Thermal Diffusivity, mm2/s 6.7
8.6
Thermal Shock Resistance, points 15
31 to 38

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 10.5 to 11.7
0
Copper (Cu), % 0
74.1 to 78
Iron (Fe), % 84.9 to 89.5
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 1.0
0 to 0.3
Nickel (Ni), % 0 to 0.5
14.5 to 15.5
Niobium (Nb), % 0 to 0.75
0 to 0.1
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
7.5 to 8.5
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3