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Nickel 725 vs. SAE-AISI T1 Steel

Nickel 725 belongs to the nickel alloys classification, while SAE-AISI T1 steel belongs to the iron alloys. There are 19 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 nickel 725 and the bottom bar is SAE-AISI T1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 860
770 to 2130

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Melting Completion (Liquidus), °C 1340
1810
Melting Onset (Solidus), °C 1270
1750
Specific Heat Capacity, J/kg-K 440
410
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
45
Density, g/cm3 8.5
9.3
Embodied Carbon, kg CO2/kg material 13
8.2
Embodied Energy, MJ/kg 190
130
Embodied Water, L/kg 270
90

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 28
23 to 64
Strength to Weight: Bending, points 24
20 to 40
Thermal Shock Resistance, points 23
23 to 64

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0.65 to 0.8
Chromium (Cr), % 19 to 22.5
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 2.3 to 15.3
73.2 to 77.2
Manganese (Mn), % 0 to 0.35
0.1 to 0.4
Molybdenum (Mo), % 7.0 to 9.5
0
Nickel (Ni), % 55 to 59
0 to 0.3
Niobium (Nb), % 2.8 to 4.0
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.2
0.2 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0
Tungsten (W), % 0
17.3 to 18.8
Vanadium (V), % 0
0.9 to 1.3