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AISI 329 Stainless Steel vs. C71580 Copper-nickel

AISI 329 stainless steel belongs to the iron alloys classification, while C71580 copper-nickel belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 329 stainless steel and the bottom bar is C71580 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
75
Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 17
40
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
51
Shear Strength, MPa 440
230
Tensile Strength: Ultimate (UTS), MPa 710
330
Tensile Strength: Yield (Proof), MPa 540
110

Thermal Properties

Latent Heat of Fusion, J/g 300
230
Maximum Temperature: Mechanical, °C 1100
260
Melting Completion (Liquidus), °C 1440
1180
Melting Onset (Solidus), °C 1390
1120
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 16
41
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 3.1
5.1
Embodied Energy, MJ/kg 44
74
Embodied Water, L/kg 170
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 730
47
Stiffness to Weight: Axial, points 15
8.5
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25
10
Strength to Weight: Bending, points 23
12
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 19
11

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 23 to 28
0
Copper (Cu), % 0
65.5 to 71
Iron (Fe), % 63.1 to 74
0 to 0.5
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 2.0 to 5.0
29 to 33
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.5