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Nickel 625 vs. AISI 405 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while AISI 405 stainless steel belongs to the iron alloys. There are 30 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 nickel 625 and the bottom bar is AISI 405 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33 to 34
22
Fatigue Strength, MPa 240 to 320
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 530 to 600
300
Tensile Strength: Ultimate (UTS), MPa 790 to 910
470
Tensile Strength: Yield (Proof), MPa 320 to 450
200

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 980
820
Melting Completion (Liquidus), °C 1350
1530
Melting Onset (Solidus), °C 1290
1480
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 80
7.0
Density, g/cm3 8.6
7.7
Embodied Carbon, kg CO2/kg material 14
2.0
Embodied Energy, MJ/kg 190
28
Embodied Water, L/kg 290
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
84
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
17
Strength to Weight: Bending, points 22 to 24
17
Thermal Diffusivity, mm2/s 2.9
8.1
Thermal Shock Resistance, points 22 to 25
16

Alloy Composition

Aluminum (Al), % 0 to 0.4
0.1 to 0.3
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 20 to 23
11.5 to 14.5
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
82.5 to 88.4
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
0 to 0.6
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0