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SAE-AISI H25 Steel vs. N07750 Nickel

SAE-AISI H25 steel belongs to the iron alloys classification, while N07750 nickel belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H25 steel and the bottom bar is N07750 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
1200

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1750
1430
Melting Onset (Solidus), °C 1700
1400
Specific Heat Capacity, J/kg-K 420
460
Thermal Conductivity, W/m-K 26
13
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 38
60
Density, g/cm3 9.1
8.4
Embodied Carbon, kg CO2/kg material 6.2
10
Embodied Energy, MJ/kg 93
150
Embodied Water, L/kg 83
260

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 22 to 50
40
Strength to Weight: Bending, points 20 to 34
30
Thermal Diffusivity, mm2/s 6.7
3.3
Thermal Shock Resistance, points 22 to 49
36

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0.22 to 0.32
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 77.2 to 81.3
5.0 to 9.0
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Nickel (Ni), % 0 to 0.3
70 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
2.3 to 2.8
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0