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S45500 Stainless Steel vs. C70620 Copper-nickel

S45500 stainless steel belongs to the iron alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is S45500 stainless steel and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
46
Tensile Strength: Ultimate (UTS), MPa 1370 to 1850
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
220
Maximum Temperature: Mechanical, °C 760
220
Melting Completion (Liquidus), °C 1440
1120
Melting Onset (Solidus), °C 1400
1060
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 17
33
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 3.8
3.4
Embodied Energy, MJ/kg 57
51
Embodied Water, L/kg 120
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 48 to 65
9.3 to 18
Strength to Weight: Bending, points 35 to 42
11 to 17
Thermal Shock Resistance, points 48 to 64
10 to 20

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.050
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 1.5 to 2.5
86.5 to 90
Iron (Fe), % 71.5 to 79.2
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 7.5 to 9.5
9.0 to 11
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.2
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0.8 to 1.4
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5