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Nickel 725 vs. AISI 430F Stainless Steel

Nickel 725 belongs to the nickel alloys classification, while AISI 430F stainless steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 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 nickel 725 and the bottom bar is AISI 430F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
23
Fatigue Strength, MPa 260
210
Poisson's Ratio 0.29
0.28
Reduction in Area, % 45
50
Shear Modulus, GPa 78
77
Shear Strength, MPa 580
340
Tensile Strength: Ultimate (UTS), MPa 860
540
Tensile Strength: Yield (Proof), MPa 350
310

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Mechanical, °C 980
870
Melting Completion (Liquidus), °C 1340
1430
Melting Onset (Solidus), °C 1270
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 75
8.5
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 13
2.1
Embodied Energy, MJ/kg 190
29
Embodied Water, L/kg 270
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
110
Resilience: Unit (Modulus of Resilience), kJ/m3 300
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 23
19

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 19 to 22.5
16 to 18
Iron (Fe), % 2.3 to 15.3
79.2 to 83.9
Manganese (Mn), % 0 to 0.35
0 to 1.3
Molybdenum (Mo), % 7.0 to 9.5
0
Nickel (Ni), % 55 to 59
0
Niobium (Nb), % 2.8 to 4.0
0
Phosphorus (P), % 0 to 0.015
0 to 0.060
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.010
0.15 to 0.35
Titanium (Ti), % 1.0 to 1.7
0