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AISI 317 Stainless Steel vs. CC381H Copper-nickel

AISI 317 stainless steel belongs to the iron alloys classification, while CC381H copper-nickel belongs to the copper alloys. There are 29 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 317 stainless steel and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 220
91
Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 35 to 55
20
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
52
Tensile Strength: Ultimate (UTS), MPa 580 to 710
380
Tensile Strength: Yield (Proof), MPa 250 to 420
140

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Maximum Temperature: Mechanical, °C 590
260
Melting Completion (Liquidus), °C 1400
1180
Melting Onset (Solidus), °C 1380
1120
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 21
40
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.3
5.0
Embodied Energy, MJ/kg 59
73
Embodied Water, L/kg 160
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 260
60
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 430
68
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 20 to 25
12
Strength to Weight: Bending, points 20 to 22
13
Thermal Diffusivity, mm2/s 4.1
8.4
Thermal Shock Resistance, points 12 to 15
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
64.5 to 69.9
Iron (Fe), % 58 to 68
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 2.0
0.6 to 1.2
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 11 to 15
29 to 31
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 0.75
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Zinc (Zn), % 0
0 to 0.5