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Nickel 625 vs. EN 1.7231 Steel

Nickel 625 belongs to the nickel alloys classification, while EN 1.7231 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33 to 34
11 to 12
Fatigue Strength, MPa 240 to 320
360 to 500
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 790 to 910
790 to 930
Tensile Strength: Yield (Proof), MPa 320 to 450
570 to 800

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 980
420
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1290
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 11
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 80
2.5
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
1.5
Embodied Energy, MJ/kg 190
20
Embodied Water, L/kg 290
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
870 to 1700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 29
28 to 33
Strength to Weight: Bending, points 22 to 24
24 to 27
Thermal Diffusivity, mm2/s 2.9
12
Thermal Shock Resistance, points 22 to 25
23 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0.38 to 0.45
Chromium (Cr), % 20 to 23
0.8 to 1.2
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
96.4 to 98.1
Manganese (Mn), % 0 to 0.5
0.6 to 1.0
Molybdenum (Mo), % 8.0 to 10
0.15 to 0.3
Nickel (Ni), % 58 to 68.9
0
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0

Comparable Variants