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EN 1.4857 Stainless Steel vs. Nickel 725

EN 1.4857 stainless steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. They have 65% of their average alloy composition in common. There are 27 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 1.4857 stainless steel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.7
34
Fatigue Strength, MPa 120
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 500
860
Tensile Strength: Yield (Proof), MPa 250
350

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1370
1340
Melting Onset (Solidus), °C 1320
1270
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
75
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 5.7
13
Embodied Energy, MJ/kg 81
190
Embodied Water, L/kg 220
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
240
Resilience: Unit (Modulus of Resilience), kJ/m3 150
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 18
24
Thermal Shock Resistance, points 11
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0.3 to 0.5
0 to 0.030
Chromium (Cr), % 24 to 27
19 to 22.5
Iron (Fe), % 31.4 to 41.7
2.3 to 15.3
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 0 to 0.5
7.0 to 9.5
Nickel (Ni), % 33 to 36
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 1.0 to 2.5
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7