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S20910 Stainless Steel vs. C72900 Copper-nickel

S20910 stainless steel belongs to the iron alloys classification, while C72900 copper-nickel belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 14 to 39
6.0 to 20
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
45
Shear Strength, MPa 500 to 570
540 to 630
Tensile Strength: Ultimate (UTS), MPa 780 to 940
870 to 1080
Tensile Strength: Yield (Proof), MPa 430 to 810
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1080
210
Melting Completion (Liquidus), °C 1420
1120
Melting Onset (Solidus), °C 1380
950
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 13
29
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
39
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 4.8
4.6
Embodied Energy, MJ/kg 68
72
Embodied Water, L/kg 180
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
2030 to 3490
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 28 to 33
27 to 34
Strength to Weight: Bending, points 24 to 27
23 to 27
Thermal Diffusivity, mm2/s 3.6
8.6
Thermal Shock Resistance, points 17 to 21
31 to 38

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
74.1 to 78
Iron (Fe), % 52.1 to 62.1
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 4.0 to 6.0
0 to 0.3
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
14.5 to 15.5
Niobium (Nb), % 0.1 to 0.3
0 to 0.1
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
7.5 to 8.5
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3