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S35115 Stainless Steel vs. CC381H Copper-nickel

S35115 stainless steel belongs to the iron alloys classification, while CC381H copper-nickel belongs to the copper alloys. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. 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 S35115 stainless steel and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
91
Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 46
20
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
52
Tensile Strength: Ultimate (UTS), MPa 670
380
Tensile Strength: Yield (Proof), MPa 310
140

Thermal Properties

Latent Heat of Fusion, J/g 310
240
Maximum Temperature: Mechanical, °C 1100
260
Melting Completion (Liquidus), °C 1420
1180
Melting Onset (Solidus), °C 1370
1120
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 26
40
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.8
5.0
Embodied Energy, MJ/kg 67
73
Embodied Water, L/kg 190
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
60
Resilience: Unit (Modulus of Resilience), kJ/m3 240
68
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 24
12
Strength to Weight: Bending, points 22
13
Thermal Diffusivity, mm2/s 3.9
8.4
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 0
64.5 to 69.9
Iron (Fe), % 47.6 to 55.8
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 1.0
0.6 to 1.2
Molybdenum (Mo), % 1.5 to 2.5
0
Nickel (Ni), % 19 to 22
29 to 31
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0.5 to 1.5
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.010
Zinc (Zn), % 0
0 to 0.5