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EN 1.4762 Stainless Steel vs. Nickel 718

EN 1.4762 stainless steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have a modest 38% 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 (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4762 stainless steel and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13
12 to 50
Fatigue Strength, MPa 180
460 to 760
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
75
Shear Strength, MPa 370
660 to 950
Tensile Strength: Ultimate (UTS), MPa 620
930 to 1530
Tensile Strength: Yield (Proof), MPa 310
510 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Mechanical, °C 1150
980
Melting Completion (Liquidus), °C 1410
1340
Melting Onset (Solidus), °C 1370
1260
Specific Heat Capacity, J/kg-K 490
450
Thermal Conductivity, W/m-K 17
11
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 7.6
8.3
Embodied Carbon, kg CO2/kg material 2.5
13
Embodied Energy, MJ/kg 37
190
Embodied Water, L/kg 170
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
140 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 250
660 to 4560
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
23
Strength to Weight: Axial, points 23
31 to 51
Strength to Weight: Bending, points 21
25 to 35
Thermal Diffusivity, mm2/s 4.6
3.0
Thermal Shock Resistance, points 22
27 to 44

Alloy Composition

Aluminum (Al), % 1.2 to 1.7
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.12
0 to 0.080
Chromium (Cr), % 23 to 26
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 69.7 to 75.1
11.1 to 24.6
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 0
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0.7 to 1.4
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2