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AISI 440C Stainless Steel vs. C72150 Copper-nickel

AISI 440C stainless steel belongs to the iron alloys classification, while C72150 copper-nickel 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 440C stainless steel and the bottom bar is C72150 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
150
Elongation at Break, % 2.0 to 14
29
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
55
Shear Strength, MPa 430 to 1120
320
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
490
Tensile Strength: Yield (Proof), MPa 450 to 1900
210

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
600
Melting Completion (Liquidus), °C 1480
1210
Melting Onset (Solidus), °C 1370
1250
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 22
22
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
45
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.2
6.1
Embodied Energy, MJ/kg 31
88
Embodied Water, L/kg 120
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
120
Stiffness to Weight: Axial, points 14
9.1
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 26 to 71
15
Strength to Weight: Bending, points 23 to 46
15
Thermal Diffusivity, mm2/s 6.0
6.0
Thermal Shock Resistance, points 26 to 71
18

Alloy Composition

Carbon (C), % 1.0 to 1.2
0 to 0.1
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
52.5 to 57
Iron (Fe), % 78 to 83.1
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0 to 0.050
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
43 to 46
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5