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S82012 Stainless Steel vs. C72150 Copper-nickel

S82012 stainless steel belongs to the iron alloys classification, while C72150 copper-nickel belongs to the copper alloys. There are 29 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 S82012 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, % 40
29
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
55
Shear Strength, MPa 550
320
Tensile Strength: Ultimate (UTS), MPa 800
490
Tensile Strength: Yield (Proof), MPa 560
210

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 950
600
Melting Completion (Liquidus), °C 1430
1210
Melting Onset (Solidus), °C 1380
1250
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
45
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.4
6.1
Embodied Energy, MJ/kg 35
88
Embodied Water, L/kg 140
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
120
Resilience: Unit (Modulus of Resilience), kJ/m3 790
150
Stiffness to Weight: Axial, points 14
9.1
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 29
15
Strength to Weight: Bending, points 25
15
Thermal Diffusivity, mm2/s 3.9
6.0
Thermal Shock Resistance, points 23
18

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.1
Chromium (Cr), % 19 to 20.5
0
Copper (Cu), % 0 to 1.0
52.5 to 57
Iron (Fe), % 71.3 to 77.9
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 2.0 to 4.0
0 to 0.050
Molybdenum (Mo), % 0.1 to 0.6
0
Nickel (Ni), % 0.8 to 1.5
43 to 46
Nitrogen (N), % 0.16 to 0.26
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.0050
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5