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AISI 415 Stainless Steel vs. Nickel 625

AISI 415 stainless steel belongs to the iron alloys classification, while nickel 625 belongs to the nickel alloys. They have a modest 21% 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 (6, in this case) are not shown.

For each property being compared, the top bar is AISI 415 stainless steel and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
33 to 34
Fatigue Strength, MPa 430
240 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
79
Shear Strength, MPa 550
530 to 600
Tensile Strength: Ultimate (UTS), MPa 900
790 to 910
Tensile Strength: Yield (Proof), MPa 700
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 780
980
Melting Completion (Liquidus), °C 1450
1350
Melting Onset (Solidus), °C 1400
1290
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 24
11
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
80
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 2.5
14
Embodied Energy, MJ/kg 35
190
Embodied Water, L/kg 110
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 1250
260 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 32
26 to 29
Strength to Weight: Bending, points 26
22 to 24
Thermal Diffusivity, mm2/s 6.4
2.9
Thermal Shock Resistance, points 33
22 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.050
0 to 0.1
Chromium (Cr), % 11.5 to 14
20 to 23
Cobalt (Co), % 0
0 to 1.0
Iron (Fe), % 77.8 to 84
0 to 5.0
Manganese (Mn), % 0.5 to 1.0
0 to 0.5
Molybdenum (Mo), % 0.5 to 1.0
8.0 to 10
Nickel (Ni), % 3.5 to 5.5
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 0.4