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EN 1.4031 Stainless Steel vs. N07750 Nickel

EN 1.4031 stainless steel belongs to the iron alloys classification, while N07750 nickel 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is N07750 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 13
25
Fatigue Strength, MPa 220 to 400
520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 400 to 540
770
Tensile Strength: Ultimate (UTS), MPa 670 to 900
1200
Tensile Strength: Yield (Proof), MPa 390 to 730
820

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Mechanical, °C 770
960
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 30
13
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
60
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 1.9
10
Embodied Energy, MJ/kg 27
150
Embodied Water, L/kg 100
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
270
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
1770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 32
40
Strength to Weight: Bending, points 22 to 27
30
Thermal Diffusivity, mm2/s 8.1
3.3
Thermal Shock Resistance, points 23 to 32
36

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0.36 to 0.42
0 to 0.080
Chromium (Cr), % 12.5 to 14.5
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 83 to 87.1
5.0 to 9.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 0
70 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
2.3 to 2.8