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Nickel 725 vs. S30815 Stainless Steel

Nickel 725 belongs to the nickel alloys classification, while S30815 stainless steel belongs to the iron alloys. They have 41% 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 S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
45
Fatigue Strength, MPa 260
320
Poisson's Ratio 0.29
0.28
Reduction in Area, % 45
56
Shear Modulus, GPa 78
77
Shear Strength, MPa 580
480
Tensile Strength: Ultimate (UTS), MPa 860
680
Tensile Strength: Yield (Proof), MPa 350
350

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 980
1020
Melting Completion (Liquidus), °C 1340
1400
Melting Onset (Solidus), °C 1270
1360
Specific Heat Capacity, J/kg-K 440
490
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
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 75
17
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 13
3.3
Embodied Energy, MJ/kg 190
47
Embodied Water, L/kg 270
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
260
Resilience: Unit (Modulus of Resilience), kJ/m3 300
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
25
Strength to Weight: Bending, points 24
22
Thermal Shock Resistance, points 23
15

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 19 to 22.5
20 to 22
Iron (Fe), % 2.3 to 15.3
62.8 to 68.4
Manganese (Mn), % 0 to 0.35
0 to 0.8
Molybdenum (Mo), % 7.0 to 9.5
0
Nickel (Ni), % 55 to 59
10 to 12
Niobium (Nb), % 2.8 to 4.0
0
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.2
1.4 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0