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EN 1.7375 Steel vs. Nickel 718

EN 1.7375 steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have a modest 22% 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 1.7375 steel and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
12 to 50
Fatigue Strength, MPa 270
460 to 760
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
75
Shear Strength, MPa 380
660 to 950
Tensile Strength: Ultimate (UTS), MPa 620
930 to 1530
Tensile Strength: Yield (Proof), MPa 400
510 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 460
980
Melting Completion (Liquidus), °C 1470
1340
Melting Onset (Solidus), °C 1430
1260
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 39
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
75
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 1.8
13
Embodied Energy, MJ/kg 23
190
Embodied Water, L/kg 59
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 420
660 to 4560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
31 to 51
Strength to Weight: Bending, points 20
25 to 35
Thermal Diffusivity, mm2/s 11
3.0
Thermal Shock Resistance, points 18
27 to 44

Alloy Composition

Aluminum (Al), % 0.010 to 0.040
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.1 to 0.15
0 to 0.080
Chromium (Cr), % 2.0 to 2.5
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 94.5 to 96.7
11.1 to 24.6
Manganese (Mn), % 0.3 to 0.8
0 to 0.35
Molybdenum (Mo), % 0.9 to 1.1
2.8 to 3.3
Nickel (Ni), % 0 to 0.3
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 0.3
0 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2