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SAE-AISI H25 Steel vs. Nickel 908

SAE-AISI H25 steel belongs to the iron alloys classification, while nickel 908 belongs to the nickel alloys. They have 45% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H25 steel and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 79
70
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
1340

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1750
1430
Melting Onset (Solidus), °C 1700
1380
Specific Heat Capacity, J/kg-K 420
460
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 12
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 38
50
Density, g/cm3 9.1
8.3
Embodied Carbon, kg CO2/kg material 6.2
9.3
Embodied Energy, MJ/kg 93
140
Embodied Water, L/kg 83
170

Common Calculations

PREN (Pitting Resistance) 29
4.2
Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 22 to 50
45
Strength to Weight: Bending, points 20 to 34
33
Thermal Diffusivity, mm2/s 6.7
2.9
Thermal Shock Resistance, points 22 to 49
61

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0.22 to 0.32
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 77.2 to 81.3
35.6 to 44.6
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Nickel (Ni), % 0 to 0.3
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.15 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0