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AISI 317LMN Stainless Steel vs. C71520 Copper-nickel

AISI 317LMN stainless steel belongs to the iron alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 317LMN stainless steel and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 45
10 to 45
Poisson's Ratio 0.28
0.33
Rockwell B Hardness 84
35 to 86
Shear Modulus, GPa 79
51
Shear Strength, MPa 430
250 to 340
Tensile Strength: Ultimate (UTS), MPa 620
370 to 570
Tensile Strength: Yield (Proof), MPa 270
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 290
230
Maximum Temperature: Mechanical, °C 1020
260
Melting Completion (Liquidus), °C 1460
1170
Melting Onset (Solidus), °C 1410
1120
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 14
32
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 24
40
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 4.8
5.0
Embodied Energy, MJ/kg 65
73
Embodied Water, L/kg 170
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 180
67 to 680
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22
12 to 18
Strength to Weight: Bending, points 20
13 to 17
Thermal Diffusivity, mm2/s 3.8
8.9
Thermal Shock Resistance, points 14
12 to 19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17 to 20
0
Copper (Cu), % 0
65 to 71.6
Iron (Fe), % 54.4 to 65.4
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 13.5 to 17.5
28 to 33
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.2
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5