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Nickel 625 vs. EN 1.4325 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while EN 1.4325 stainless steel belongs to the iron alloys. They have a modest 30% 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 (5, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is EN 1.4325 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33 to 34
45
Fatigue Strength, MPa 240 to 320
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 530 to 600
450
Tensile Strength: Ultimate (UTS), MPa 790 to 910
650
Tensile Strength: Yield (Proof), MPa 320 to 450
210

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 980
930
Melting Completion (Liquidus), °C 1350
1430
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
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 80
15
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
3.0
Embodied Energy, MJ/kg 190
42
Embodied Water, L/kg 290
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
230
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
23
Strength to Weight: Bending, points 22 to 24
21
Thermal Diffusivity, mm2/s 2.9
4.3
Thermal Shock Resistance, points 22 to 25
15

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0.030 to 0.15
Chromium (Cr), % 20 to 23
17 to 19
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
67.8 to 75
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
8.0 to 10
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0