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Nickel 625 vs. SAE-AISI 4161 Steel

Nickel 625 belongs to the nickel alloys classification, while SAE-AISI 4161 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is SAE-AISI 4161 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33 to 34
20
Fatigue Strength, MPa 240 to 320
290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 530 to 600
420
Tensile Strength: Ultimate (UTS), MPa 790 to 910
680
Tensile Strength: Yield (Proof), MPa 320 to 450
410

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 980
420
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 11
43
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 80
2.5
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
1.5
Embodied Energy, MJ/kg 190
20
Embodied Water, L/kg 290
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
120
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 29
24
Strength to Weight: Bending, points 22 to 24
22
Thermal Diffusivity, mm2/s 2.9
12
Thermal Shock Resistance, points 22 to 25
22

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0.56 to 0.64
Chromium (Cr), % 20 to 23
0.7 to 0.9
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
96.7 to 97.6
Manganese (Mn), % 0 to 0.5
0.75 to 1.0
Molybdenum (Mo), % 8.0 to 10
0.25 to 0.35
Nickel (Ni), % 58 to 68.9
0
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Titanium (Ti), % 0 to 0.4
0