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EN 1.4508 Stainless Steel vs. Nickel 725

EN 1.4508 stainless steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. They have 42% 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 1.4508 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, % 34
34
Fatigue Strength, MPa 210
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 570
860
Tensile Strength: Yield (Proof), MPa 260
350

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1000
980
Melting Completion (Liquidus), °C 1450
1340
Melting Onset (Solidus), °C 1400
1270
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
75
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 4.0
13
Embodied Energy, MJ/kg 55
190
Embodied Water, L/kg 160
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
240
Resilience: Unit (Modulus of Resilience), kJ/m3 170
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 20
28
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 17
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
19 to 22.5
Iron (Fe), % 61.2 to 69.9
2.3 to 15.3
Manganese (Mn), % 0 to 1.5
0 to 0.35
Molybdenum (Mo), % 3.0 to 3.5
7.0 to 9.5
Nickel (Ni), % 9.0 to 12
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.5
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7