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AISI 201L Stainless Steel vs. Nickel 725

AISI 201L stainless steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 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 201L stainless steel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 22 to 46
34
Fatigue Strength, MPa 270 to 530
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Shear Strength, MPa 520 to 660
580
Tensile Strength: Ultimate (UTS), MPa 740 to 1040
860
Tensile Strength: Yield (Proof), MPa 290 to 790
350

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 880
980
Melting Completion (Liquidus), °C 1410
1340
Melting Onset (Solidus), °C 1370
1270
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 2.6
13
Embodied Energy, MJ/kg 38
190
Embodied Water, L/kg 140
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
240
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1570
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27 to 37
28
Strength to Weight: Bending, points 24 to 30
24
Thermal Shock Resistance, points 16 to 23
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 18
19 to 22.5
Iron (Fe), % 67.9 to 75
2.3 to 15.3
Manganese (Mn), % 5.5 to 7.5
0 to 0.35
Molybdenum (Mo), % 0
7.0 to 9.5
Nickel (Ni), % 3.5 to 5.5
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7