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Nickel 825 vs. SAE-AISI 8627 Steel

Nickel 825 belongs to the nickel alloys classification, while SAE-AISI 8627 steel belongs to the iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 825 and the bottom bar is SAE-AISI 8627 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
23
Fatigue Strength, MPa 190
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 430
320
Tensile Strength: Ultimate (UTS), MPa 650
500
Tensile Strength: Yield (Proof), MPa 260
330

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 980
410
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 11
38
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 41
2.6
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.2
1.5
Embodied Energy, MJ/kg 100
20
Embodied Water, L/kg 230
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
100
Resilience: Unit (Modulus of Resilience), kJ/m3 170
280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 2.9
10
Thermal Shock Resistance, points 17
17

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0 to 0.050
0.25 to 0.3
Chromium (Cr), % 19.5 to 23.5
0.4 to 0.6
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 22 to 37.9
96.8 to 98
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 2.5 to 3.5
0.15 to 0.25
Nickel (Ni), % 38 to 46
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 0.6 to 1.2
0