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Nickel 625 vs. EN 1.7709 Steel

Nickel 625 belongs to the nickel alloys classification, while EN 1.7709 steel belongs to the iron alloys. There are 24 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 625 and the bottom bar is EN 1.7709 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 790 to 910
650 to 780

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 980
440
Melting Completion (Liquidus), °C 1350
1470
Melting Onset (Solidus), °C 1290
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 11
33
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 80
3.4
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
2.3
Embodied Energy, MJ/kg 190
32
Embodied Water, L/kg 290
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 29
23 to 27
Strength to Weight: Bending, points 22 to 24
21 to 24
Thermal Diffusivity, mm2/s 2.9
8.9
Thermal Shock Resistance, points 22 to 25
22 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.4
0 to 0.030
Carbon (C), % 0 to 0.1
0.17 to 0.25
Chromium (Cr), % 20 to 23
1.2 to 1.5
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
95.2 to 97.5
Manganese (Mn), % 0 to 0.5
0.4 to 0.8
Molybdenum (Mo), % 8.0 to 10
0.55 to 0.8
Nickel (Ni), % 58 to 68.9
0 to 0.6
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 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0
Vanadium (V), % 0
0.2 to 0.35