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AISI 317L Stainless Steel vs. C70620 Copper-nickel

AISI 317L stainless steel belongs to the iron alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 317L stainless steel and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.28
0.34
Rockwell B Hardness 81
65 to 87
Shear Modulus, GPa 82
46
Tensile Strength: Ultimate (UTS), MPa 550
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
220
Maximum Temperature: Mechanical, °C 1010
220
Melting Completion (Liquidus), °C 1400
1120
Melting Onset (Solidus), °C 1380
1060
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 14
49
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 21
33
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.3
3.4
Embodied Energy, MJ/kg 59
51
Embodied Water, L/kg 160
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 19
9.3 to 18
Strength to Weight: Bending, points 19
11 to 17
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 12
10 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
86.5 to 90
Iron (Fe), % 58 to 68
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 11 to 15
9.0 to 11
Nitrogen (N), % 0 to 0.1
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