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Nickel 725 vs. EN 1.4376 Stainless Steel

Nickel 725 belongs to the nickel alloys classification, while EN 1.4376 stainless steel belongs to the iron alloys. They have a modest 31% 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 1.4376 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
45
Fatigue Strength, MPa 260
420
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 580
530
Tensile Strength: Ultimate (UTS), MPa 860
750
Tensile Strength: Yield (Proof), MPa 350
450

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 980
930
Melting Completion (Liquidus), °C 1340
1410
Melting Onset (Solidus), °C 1270
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 75
12
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 13
2.6
Embodied Energy, MJ/kg 190
37
Embodied Water, L/kg 270
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
290
Resilience: Unit (Modulus of Resilience), kJ/m3 300
520
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 23
17

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 19 to 22.5
17 to 20.5
Iron (Fe), % 2.3 to 15.3
65.5 to 76
Manganese (Mn), % 0 to 0.35
5.0 to 8.0
Molybdenum (Mo), % 7.0 to 9.5
0
Nickel (Ni), % 55 to 59
2.0 to 4.5
Niobium (Nb), % 2.8 to 4.0
0
Nitrogen (N), % 0
0 to 0.3
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