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AISI 409 Stainless Steel vs. C70620 Copper-nickel

AISI 409 stainless steel belongs to the iron alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
46
Tensile Strength: Ultimate (UTS), MPa 420
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
220
Maximum Temperature: Mechanical, °C 710
220
Melting Completion (Liquidus), °C 1450
1120
Melting Onset (Solidus), °C 1400
1060
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 25
49
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
33
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.0
3.4
Embodied Energy, MJ/kg 28
51
Embodied Water, L/kg 94
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 15
9.3 to 18
Strength to Weight: Bending, points 16
11 to 17
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 15
10 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 10.5 to 11.7
0
Copper (Cu), % 0
86.5 to 90
Iron (Fe), % 84.9 to 89.5
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 0 to 0.5
9.0 to 11
Phosphorus (P), % 0 to 0.045
0 to 0.2
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0 to 0.75
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5