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Nickel 617 vs. SAE-AISI 8740 Steel

Nickel 617 belongs to the nickel alloys classification, while SAE-AISI 8740 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is nickel 617 and the bottom bar is SAE-AISI 8740 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 40
11 to 23
Fatigue Strength, MPa 220
270 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 510
370 to 400
Tensile Strength: Ultimate (UTS), MPa 740
580 to 670
Tensile Strength: Yield (Proof), MPa 280
380 to 570

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 1010
410
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.6
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 10
1.5
Embodied Energy, MJ/kg 140
20
Embodied Water, L/kg 350
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
390 to 850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 24
20 to 24
Strength to Weight: Bending, points 21
20 to 22
Thermal Diffusivity, mm2/s 3.5
10
Thermal Shock Resistance, points 21
17 to 20

Alloy Composition

Aluminum (Al), % 0.8 to 1.5
0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0.050 to 0.15
0.38 to 0.43
Chromium (Cr), % 20 to 24
0.4 to 0.6
Cobalt (Co), % 10 to 15
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 3.0
96.5 to 97.7
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 8.0 to 10
0.2 to 0.3
Nickel (Ni), % 44.5 to 62
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040