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S38815 Stainless Steel vs. C71640 Copper-nickel

S38815 stainless steel belongs to the iron alloys classification, while C71640 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
52
Tensile Strength: Ultimate (UTS), MPa 610
490 to 630
Tensile Strength: Yield (Proof), MPa 290
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 370
240
Maximum Temperature: Mechanical, °C 860
260
Melting Completion (Liquidus), °C 1360
1180
Melting Onset (Solidus), °C 1310
1120
Specific Heat Capacity, J/kg-K 500
410
Thermal Expansion, µm/m-K 15
15

Otherwise Unclassified Properties

Base Metal Price, % relative 19
40
Density, g/cm3 7.5
8.9
Embodied Carbon, kg CO2/kg material 3.8
5.0
Embodied Energy, MJ/kg 54
73
Embodied Water, L/kg 140
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 220
130 to 750
Stiffness to Weight: Axial, points 14
8.7
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 22
15 to 20
Strength to Weight: Bending, points 21
16 to 18
Thermal Shock Resistance, points 15
16 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 0.75 to 1.5
61.7 to 67.8
Iron (Fe), % 56.1 to 67
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
1.5 to 2.5
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
29 to 32
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 5.5 to 6.5
0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5