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AISI 329 Stainless Steel vs. C70700 Copper-nickel

AISI 329 stainless steel belongs to the iron alloys classification, while C70700 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 C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
73
Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 17
39
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 80
46
Shear Strength, MPa 440
220
Tensile Strength: Ultimate (UTS), MPa 710
320
Tensile Strength: Yield (Proof), MPa 540
110

Thermal Properties

Latent Heat of Fusion, J/g 300
220
Maximum Temperature: Mechanical, °C 1100
220
Melting Completion (Liquidus), °C 1440
1120
Melting Onset (Solidus), °C 1390
1060
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
59
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
34
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 3.1
3.4
Embodied Energy, MJ/kg 44
52
Embodied Water, L/kg 170
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 730
51
Stiffness to Weight: Axial, points 15
7.6
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
17
Thermal Shock Resistance, points 19
12

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 23 to 28
0
Copper (Cu), % 0
88.5 to 90.5
Iron (Fe), % 63.1 to 74
0 to 0.050
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 2.0 to 5.0
9.5 to 10.5
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5