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Nickel 625 vs. AISI 201L Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while AISI 201L stainless steel belongs to the iron alloys. They have a modest 25% 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 (4, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is AISI 201L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33 to 34
22 to 46
Fatigue Strength, MPa 240 to 320
270 to 530
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 530 to 600
520 to 660
Tensile Strength: Ultimate (UTS), MPa 790 to 910
740 to 1040
Tensile Strength: Yield (Proof), MPa 320 to 450
290 to 790

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 980
880
Melting Completion (Liquidus), °C 1350
1410
Melting Onset (Solidus), °C 1290
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 80
12
Density, g/cm3 8.6
7.7
Embodied Carbon, kg CO2/kg material 14
2.6
Embodied Energy, MJ/kg 190
38
Embodied Water, L/kg 290
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
220 to 1570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
27 to 37
Strength to Weight: Bending, points 22 to 24
24 to 30
Thermal Diffusivity, mm2/s 2.9
4.0
Thermal Shock Resistance, points 22 to 25
16 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 23
16 to 18
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
67.9 to 75
Manganese (Mn), % 0 to 0.5
5.5 to 7.5
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
3.5 to 5.5
Niobium (Nb), % 3.2 to 4.2
0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0

Comparable Variants