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S44800 Stainless Steel vs. C71500 Copper-nickel

S44800 stainless steel belongs to the iron alloys classification, while C71500 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S44800 stainless steel and the bottom bar is C71500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
140
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 82
52
Tensile Strength: Ultimate (UTS), MPa 590
380 to 620

Thermal Properties

Latent Heat of Fusion, J/g 300
230
Maximum Temperature: Mechanical, °C 1100
260
Melting Completion (Liquidus), °C 1460
1240
Melting Onset (Solidus), °C 1410
1170
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 17
28
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
41
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.8
5.1
Embodied Energy, MJ/kg 52
74
Embodied Water, L/kg 190
280

Common Calculations

Stiffness to Weight: Axial, points 15
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21
12 to 19
Strength to Weight: Bending, points 20
13 to 18
Thermal Diffusivity, mm2/s 4.6
7.7
Thermal Shock Resistance, points 19
12 to 20

Alloy Composition

Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.15
63.5 to 70.6
Iron (Fe), % 62.6 to 66.5
0.4 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.3
0 to 1.0
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 2.0 to 2.5
29 to 33
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5