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Nickel 725 vs. EN 1.7711 Steel

Nickel 725 belongs to the nickel alloys classification, while EN 1.7711 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is nickel 725 and the bottom bar is EN 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16 to 22
Fatigue Strength, MPa 260
290 to 520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 580
440 to 570
Tensile Strength: Ultimate (UTS), MPa 860
690 to 930
Tensile Strength: Yield (Proof), MPa 350
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 980
430
Melting Completion (Liquidus), °C 1340
1460
Melting Onset (Solidus), °C 1270
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 75
3.0
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 13
2.3
Embodied Energy, MJ/kg 190
32
Embodied Water, L/kg 270
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 300
430 to 1690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28
24 to 33
Strength to Weight: Bending, points 24
22 to 27
Thermal Shock Resistance, points 23
24 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.015
Carbon (C), % 0 to 0.030
0.36 to 0.44
Chromium (Cr), % 19 to 22.5
0.9 to 1.2
Iron (Fe), % 2.3 to 15.3
96 to 97.5
Manganese (Mn), % 0 to 0.35
0.45 to 0.85
Molybdenum (Mo), % 7.0 to 9.5
0.5 to 0.65
Nickel (Ni), % 55 to 59
0
Niobium (Nb), % 2.8 to 4.0
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0
Vanadium (V), % 0
0.25 to 0.35