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S39274 Stainless Steel vs. C70700 Copper-nickel

S39274 stainless steel belongs to the iron alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 30 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 S39274 stainless steel and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
73
Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 17
39
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 81
46
Shear Strength, MPa 560
220
Tensile Strength: Ultimate (UTS), MPa 900
320
Tensile Strength: Yield (Proof), MPa 620
110

Thermal Properties

Latent Heat of Fusion, J/g 300
220
Maximum Temperature: Mechanical, °C 1100
220
Melting Completion (Liquidus), °C 1480
1120
Melting Onset (Solidus), °C 1430
1060
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 16
59
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
34
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 4.3
3.4
Embodied Energy, MJ/kg 60
52
Embodied Water, L/kg 180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
100
Resilience: Unit (Modulus of Resilience), kJ/m3 940
51
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 32
10
Strength to Weight: Bending, points 26
12
Thermal Diffusivity, mm2/s 4.2
17
Thermal Shock Resistance, points 25
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0.2 to 0.8
88.5 to 90.5
Iron (Fe), % 57 to 65.6
0 to 0.050
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 6.0 to 8.0
9.5 to 10.5
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 1.5 to 2.5
0
Residuals, % 0
0 to 0.5