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AISI 403 Stainless Steel vs. C72200 Copper-nickel

AISI 403 stainless steel belongs to the iron alloys classification, while C72200 copper-nickel belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AISI 403 stainless steel and the bottom bar is C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
130
Poisson's Ratio 0.28
0.33
Rockwell B Hardness 83
71 to 86
Shear Modulus, GPa 76
48
Tensile Strength: Ultimate (UTS), MPa 530 to 780
350 to 580

Thermal Properties

Latent Heat of Fusion, J/g 270
220
Maximum Temperature: Mechanical, °C 740
230
Melting Completion (Liquidus), °C 1450
1180
Melting Onset (Solidus), °C 1400
1120
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 28
34
Thermal Expansion, µm/m-K 9.9
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
36
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.9
3.9
Embodied Energy, MJ/kg 27
59
Embodied Water, L/kg 99
300

Common Calculations

Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 19 to 28
11 to 18
Strength to Weight: Bending, points 19 to 24
12 to 17
Thermal Diffusivity, mm2/s 7.6
9.6
Thermal Shock Resistance, points 20 to 29
12 to 20

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 11.5 to 13
0.3 to 0.7
Copper (Cu), % 0
78.1 to 84.2
Iron (Fe), % 84.7 to 88.5
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 0 to 0.6
15 to 18
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.2