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EN 1.4938 Stainless Steel vs. N06985 Nickel

EN 1.4938 stainless steel belongs to the iron alloys classification, while N06985 nickel belongs to the nickel 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 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, % 16 to 17
45
Fatigue Strength, MPa 390 to 520
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Shear Strength, MPa 540 to 630
480
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
690
Tensile Strength: Yield (Proof), MPa 640 to 870
260

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 750
990
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1420
1260
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 30
10
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.3
8.8
Embodied Energy, MJ/kg 47
120
Embodied Water, L/kg 110
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
250
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 31 to 37
23
Strength to Weight: Bending, points 26 to 29
21
Thermal Diffusivity, mm2/s 8.1
2.6
Thermal Shock Resistance, points 30 to 35
16

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.015
Chromium (Cr), % 11 to 12.5
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 80.5 to 84.8
18 to 21
Manganese (Mn), % 0.4 to 0.9
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.0
6.0 to 8.0
Nickel (Ni), % 2.0 to 3.0
35.9 to 53.5
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
0 to 1.5
Vanadium (V), % 0.25 to 0.4
0