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AISI 303 Stainless Steel vs. C71500 Copper-nickel

AISI 303 stainless steel belongs to the iron alloys classification, while C71500 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 AISI 303 stainless steel and the bottom bar is C71500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
52
Tensile Strength: Ultimate (UTS), MPa 600 to 690
380 to 620

Thermal Properties

Latent Heat of Fusion, J/g 290
230
Maximum Temperature: Mechanical, °C 930
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
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
41
Calomel Potential, mV -80
-250
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.0
5.1
Embodied Energy, MJ/kg 42
74
Embodied Water, L/kg 140
280

Common Calculations

Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21 to 25
12 to 19
Strength to Weight: Bending, points 20 to 22
13 to 18
Thermal Diffusivity, mm2/s 4.4
7.7
Thermal Shock Resistance, points 13 to 15
12 to 20

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
63.5 to 70.6
Iron (Fe), % 67.3 to 74.9
0.4 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
29 to 33
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5