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Nickel 625 vs. EN 1.4568 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while EN 1.4568 stainless steel belongs to the iron alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is EN 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33 to 34
2.3 to 21
Fatigue Strength, MPa 240 to 320
220 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 530 to 600
520 to 930
Tensile Strength: Ultimate (UTS), MPa 790 to 910
830 to 1620
Tensile Strength: Yield (Proof), MPa 320 to 450
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 980
890
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1290
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
13
Density, g/cm3 8.6
7.7
Embodied Carbon, kg CO2/kg material 14
2.8
Embodied Energy, MJ/kg 190
40
Embodied Water, L/kg 290
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
290 to 5710
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
30 to 58
Strength to Weight: Bending, points 22 to 24
25 to 40
Thermal Diffusivity, mm2/s 2.9
4.3
Thermal Shock Resistance, points 22 to 25
23 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.4
0.7 to 1.5
Carbon (C), % 0 to 0.1
0 to 0.090
Chromium (Cr), % 20 to 23
16 to 18
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
70.9 to 76.8
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
6.5 to 7.8
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.4
0

Comparable Variants