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Nickel 725 vs. AISI 317L Stainless Steel

Nickel 725 belongs to the nickel alloys classification, while AISI 317L stainless steel belongs to the iron alloys. They have 45% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 725 and the bottom bar is AISI 317L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
44
Fatigue Strength, MPa 260
220
Poisson's Ratio 0.29
0.28
Reduction in Area, % 45
56
Shear Modulus, GPa 78
82
Shear Strength, MPa 580
380
Tensile Strength: Ultimate (UTS), MPa 860
550
Tensile Strength: Yield (Proof), MPa 350
250

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 980
1010
Melting Completion (Liquidus), °C 1340
1400
Melting Onset (Solidus), °C 1270
1380
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 75
21
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 13
4.3
Embodied Energy, MJ/kg 190
59
Embodied Water, L/kg 270
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
200
Resilience: Unit (Modulus of Resilience), kJ/m3 300
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 23
12

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 19 to 22.5
18 to 20
Iron (Fe), % 2.3 to 15.3
58 to 68
Manganese (Mn), % 0 to 0.35
0 to 2.0
Molybdenum (Mo), % 7.0 to 9.5
3.0 to 4.0
Nickel (Ni), % 55 to 59
11 to 15
Niobium (Nb), % 2.8 to 4.0
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0