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EN 1.4315 Stainless Steel vs. Nickel 718

EN 1.4315 stainless steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have 47% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4315 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, % 45
12 to 50
Fatigue Strength, MPa 290
460 to 760
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Shear Strength, MPa 440
660 to 950
Tensile Strength: Ultimate (UTS), MPa 630
930 to 1530
Tensile Strength: Yield (Proof), MPa 310
510 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 960
980
Melting Completion (Liquidus), °C 1420
1340
Melting Onset (Solidus), °C 1380
1260
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.0
13
Embodied Energy, MJ/kg 43
190
Embodied Water, L/kg 150
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
140 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 240
660 to 4560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22
31 to 51
Strength to Weight: Bending, points 21
25 to 35
Thermal Diffusivity, mm2/s 4.0
3.0
Thermal Shock Resistance, points 14
27 to 44

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 18 to 20
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 65.7 to 73.9
11.1 to 24.6
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 8.0 to 11
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2