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Nickel 601 vs. S20431 Stainless Steel

Nickel 601 belongs to the nickel alloys classification, while S20431 stainless steel belongs to the iron alloys. They have a modest 36% 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 (5, in this case) are not shown.

For each property being compared, the top bar is nickel 601 and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 10 to 38
46
Fatigue Strength, MPa 220 to 380
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 440 to 530
500
Tensile Strength: Ultimate (UTS), MPa 660 to 890
710
Tensile Strength: Yield (Proof), MPa 290 to 800
350

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1360
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 49
12
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 8.0
2.5
Embodied Energy, MJ/kg 110
36
Embodied Water, L/kg 280
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 200
270
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 1630
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22 to 30
25
Strength to Weight: Bending, points 20 to 25
23
Thermal Diffusivity, mm2/s 2.8
4.0
Thermal Shock Resistance, points 17 to 23
15

Alloy Composition

Aluminum (Al), % 1.0 to 1.7
0
Carbon (C), % 0 to 0.1
0 to 0.12
Chromium (Cr), % 21 to 25
17 to 18
Copper (Cu), % 0 to 1.0
1.5 to 3.5
Iron (Fe), % 7.7 to 20
66.1 to 74.4
Manganese (Mn), % 0 to 1.0
5.0 to 7.0
Nickel (Ni), % 58 to 63
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030