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Nickel 725 vs. EN 1.4872 Stainless Steel

Nickel 725 belongs to the nickel alloys classification, while EN 1.4872 stainless steel belongs to the iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 725 and the bottom bar is EN 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
28
Fatigue Strength, MPa 260
410
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
79
Shear Strength, MPa 580
620
Tensile Strength: Ultimate (UTS), MPa 860
950
Tensile Strength: Yield (Proof), MPa 350
560

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 980
1150
Melting Completion (Liquidus), °C 1340
1390
Melting Onset (Solidus), °C 1270
1340
Specific Heat Capacity, J/kg-K 440
490
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 75
17
Density, g/cm3 8.5
7.6
Embodied Carbon, kg CO2/kg material 13
3.3
Embodied Energy, MJ/kg 190
47
Embodied Water, L/kg 270
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
230
Resilience: Unit (Modulus of Resilience), kJ/m3 300
780
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 28
35
Strength to Weight: Bending, points 24
28
Thermal Shock Resistance, points 23
21

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0.2 to 0.3
Chromium (Cr), % 19 to 22.5
24 to 26
Iron (Fe), % 2.3 to 15.3
54.2 to 61.6
Manganese (Mn), % 0 to 0.35
8.0 to 10
Molybdenum (Mo), % 7.0 to 9.5
0
Nickel (Ni), % 55 to 59
6.0 to 8.0
Niobium (Nb), % 2.8 to 4.0
0
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 1.0 to 1.7
0