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S30441 Stainless Steel vs. C71000 Copper-nickel

S30441 stainless steel belongs to the iron alloys classification, while C71000 copper-nickel belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S30441 stainless steel and the bottom bar is C71000 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
130
Poisson's Ratio 0.28
0.33
Rockwell B Hardness 81
59 to 85
Shear Modulus, GPa 76
49
Tensile Strength: Ultimate (UTS), MPa 580
320 to 560

Thermal Properties

Latent Heat of Fusion, J/g 300
230
Maximum Temperature: Mechanical, °C 940
240
Melting Completion (Liquidus), °C 1420
1200
Melting Onset (Solidus), °C 1370
1150
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 18
37
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.4
4.3
Embodied Energy, MJ/kg 50
63
Embodied Water, L/kg 150
290

Common Calculations

Stiffness to Weight: Axial, points 14
8.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21
10 to 18
Strength to Weight: Bending, points 20
12 to 17
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 13
12 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 1.5 to 2.5
73.5 to 80.5
Iron (Fe), % 62 to 71.7
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 8.0 to 10.5
19 to 23
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 1.0 to 2.0
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0.2 to 0.8
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5