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AISI 304 Stainless Steel vs. C96400 Copper-nickel

AISI 304 stainless steel belongs to the iron alloys classification, while C96400 copper-nickel belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 304 stainless steel and the bottom bar is C96400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 8.0 to 43
25
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
51
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
490
Tensile Strength: Yield (Proof), MPa 230 to 860
260

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Maximum Temperature: Mechanical, °C 710
260
Melting Completion (Liquidus), °C 1450
1240
Melting Onset (Solidus), °C 1400
1170
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 16
28
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 15
45
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.0
5.9
Embodied Energy, MJ/kg 43
87
Embodied Water, L/kg 150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
250
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21 to 42
15
Strength to Weight: Bending, points 20 to 32
16
Thermal Diffusivity, mm2/s 4.2
7.8
Thermal Shock Resistance, points 12 to 25
17

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
62.3 to 71.3
Iron (Fe), % 66.5 to 74
0.25 to 1.5
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 8.0 to 10.5
28 to 32
Niobium (Nb), % 0
0.5 to 1.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Residuals, % 0
0 to 0.5