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Nickel 725 vs. SAE-AISI H23 Steel

Nickel 725 belongs to the nickel alloys classification, while SAE-AISI H23 steel belongs to the iron alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. 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 H23 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 860
760 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1340
1680
Melting Onset (Solidus), °C 1270
1630
Specific Heat Capacity, J/kg-K 440
440
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
34
Density, g/cm3 8.5
8.7
Embodied Carbon, kg CO2/kg material 13
6.9
Embodied Energy, MJ/kg 190
110
Embodied Water, L/kg 270
120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 28
24 to 49
Strength to Weight: Bending, points 24
21 to 34
Thermal Shock Resistance, points 23
23 to 47

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0.25 to 0.35
Chromium (Cr), % 19 to 22.5
11 to 12.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 2.3 to 15.3
71.3 to 76.7
Manganese (Mn), % 0 to 0.35
0.15 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
0.15 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0
Tungsten (W), % 0
11 to 12.8
Vanadium (V), % 0
0.75 to 1.3