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Nickel 825 vs. EN 1.4458 Stainless Steel

Nickel 825 belongs to the nickel alloys classification, while EN 1.4458 stainless steel belongs to the iron alloys. They have 82% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is nickel 825 and the bottom bar is EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 190
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 650
510
Tensile Strength: Yield (Proof), MPa 260
190

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 11
16
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 41
30
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 7.2
5.4
Embodied Energy, MJ/kg 100
75
Embodied Water, L/kg 230
200

Common Calculations

PREN (Pitting Resistance) 31
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
140
Resilience: Unit (Modulus of Resilience), kJ/m3 170
89
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 2.9
4.2
Thermal Shock Resistance, points 17
12

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 19.5 to 23.5
19 to 22
Copper (Cu), % 1.5 to 3.0
0 to 2.0
Iron (Fe), % 22 to 37.9
40.2 to 53
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
2.0 to 2.5
Nickel (Ni), % 38 to 46
26 to 30
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0.6 to 1.2
0