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AISI 409 Stainless Steel vs. C72700 Copper-nickel

AISI 409 stainless steel belongs to the iron alloys classification, while C72700 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 409 stainless steel and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 24
4.0 to 36
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
44
Shear Strength, MPa 270
310 to 620
Tensile Strength: Ultimate (UTS), MPa 420
460 to 1070
Tensile Strength: Yield (Proof), MPa 200
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Maximum Temperature: Mechanical, °C 710
200
Melting Completion (Liquidus), °C 1450
1100
Melting Onset (Solidus), °C 1400
930
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 25
54
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
11
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
11

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
36
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 2.0
4.0
Embodied Energy, MJ/kg 28
62
Embodied Water, L/kg 94
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 100
1420 to 4770
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 15
14 to 34
Strength to Weight: Bending, points 16
15 to 26
Thermal Diffusivity, mm2/s 6.7
16
Thermal Shock Resistance, points 15
16 to 38

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 10.5 to 11.7
0
Copper (Cu), % 0
82.1 to 86
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
0.050 to 0.3
Nickel (Ni), % 0 to 0.5
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
5.5 to 6.5
Titanium (Ti), % 0 to 0.75
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3