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Nickel 725 vs. EN 1.4849 Stainless Steel

Nickel 725 belongs to the nickel alloys classification, while EN 1.4849 stainless steel belongs to the iron alloys. They have 68% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is nickel 725 and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
4.5
Fatigue Strength, MPa 260
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 860
480
Tensile Strength: Yield (Proof), MPa 350
250

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 980
1020
Melting Completion (Liquidus), °C 1340
1390
Melting Onset (Solidus), °C 1270
1340
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 75
42
Density, g/cm3 8.5
8.0
Embodied Carbon, kg CO2/kg material 13
7.1
Embodied Energy, MJ/kg 190
100
Embodied Water, L/kg 270
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
18
Resilience: Unit (Modulus of Resilience), kJ/m3 300
160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 24
17
Thermal Shock Resistance, points 23
11

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0.3 to 0.5
Chromium (Cr), % 19 to 22.5
18 to 21
Iron (Fe), % 2.3 to 15.3
32.6 to 43.5
Manganese (Mn), % 0 to 0.35
0 to 2.0
Molybdenum (Mo), % 7.0 to 9.5
0 to 0.5
Nickel (Ni), % 55 to 59
36 to 39
Niobium (Nb), % 2.8 to 4.0
1.2 to 1.8
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.2
1.0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0