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S31727 Stainless Steel vs. C72150 Copper-nickel

S31727 stainless steel belongs to the iron alloys classification, while C72150 copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is C72150 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
99
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 430
320
Tensile Strength: Ultimate (UTS), MPa 630
490
Tensile Strength: Yield (Proof), MPa 270
210

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1010
600
Melting Completion (Liquidus), °C 1440
1210
Melting Onset (Solidus), °C 1390
1250
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 16
14

Otherwise Unclassified Properties

Base Metal Price, % relative 24
45
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 4.7
6.1
Embodied Energy, MJ/kg 64
88
Embodied Water, L/kg 180
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
150
Stiffness to Weight: Axial, points 14
9.1
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 20
15
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
52.5 to 57
Iron (Fe), % 53.7 to 61.3
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0 to 0.050
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
43 to 46
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5