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Nickel 725 vs. SAE-AISI H19 Steel

Nickel 725 belongs to the nickel alloys classification, while SAE-AISI H19 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 H19 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 860
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1340
1540
Melting Onset (Solidus), °C 1270
1490
Specific Heat Capacity, J/kg-K 440
460
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
22
Density, g/cm3 8.5
8.2
Embodied Carbon, kg CO2/kg material 13
7.5
Embodied Energy, MJ/kg 190
110
Embodied Water, L/kg 270
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28
24 to 68
Strength to Weight: Bending, points 24
22 to 43
Thermal Shock Resistance, points 23
21 to 59

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0.32 to 0.45
Chromium (Cr), % 19 to 22.5
4.0 to 4.8
Cobalt (Co), % 0
4.0 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 2.3 to 15.3
81.4 to 85.5
Manganese (Mn), % 0 to 0.35
0.2 to 0.5
Molybdenum (Mo), % 7.0 to 9.5
0.3 to 0.55
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 0.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0
Tungsten (W), % 0
3.8 to 4.5
Vanadium (V), % 0
1.8 to 2.2