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EN 1.4634 Stainless Steel vs. N06985 Nickel

EN 1.4634 stainless steel belongs to the iron alloys classification, while N06985 nickel belongs to the nickel alloys. They have a modest 40% 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4634 stainless steel and the bottom bar is N06985 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 21
45
Fatigue Strength, MPa 180
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 340
480
Tensile Strength: Ultimate (UTS), MPa 540
690
Tensile Strength: Yield (Proof), MPa 280
260

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 900
990
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1390
1260
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 21
10
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
55
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.9
8.8
Embodied Energy, MJ/kg 42
120
Embodied Water, L/kg 140
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
250
Resilience: Unit (Modulus of Resilience), kJ/m3 200
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 20
23
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 5.8
2.6
Thermal Shock Resistance, points 19
16

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
0
Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 17.5 to 18.5
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0 to 0.5
1.5 to 2.5
Iron (Fe), % 74.9 to 81.8
18 to 21
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
6.0 to 8.0
Nickel (Ni), % 0 to 0.5
35.9 to 53.5
Niobium (Nb), % 0.3 to 1.0
0 to 0.5
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0.2 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030
Tungsten (W), % 0
0 to 1.5