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EN 1.4594 Stainless Steel vs. Nickel 625

EN 1.4594 stainless steel belongs to the iron alloys classification, while nickel 625 belongs to the nickel alloys. They have a modest 25% 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 EN 1.4594 stainless steel and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 17
33 to 34
Fatigue Strength, MPa 490 to 620
240 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
79
Shear Strength, MPa 620 to 700
530 to 600
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
790 to 910
Tensile Strength: Yield (Proof), MPa 810 to 1140
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 820
980
Melting Completion (Liquidus), °C 1450
1350
Melting Onset (Solidus), °C 1410
1290
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 16
11
Thermal Expansion, µm/m-K 11
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
80
Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 3.2
14
Embodied Energy, MJ/kg 45
190
Embodied Water, L/kg 130
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
260 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 36 to 41
26 to 29
Strength to Weight: Bending, points 29 to 31
22 to 24
Thermal Diffusivity, mm2/s 4.4
2.9
Thermal Shock Resistance, points 34 to 39
22 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.070
0 to 0.1
Chromium (Cr), % 13 to 15
20 to 23
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 72.6 to 79.5
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 1.2 to 2.0
8.0 to 10
Nickel (Ni), % 5.0 to 6.0
58 to 68.9
Niobium (Nb), % 0.15 to 0.6
3.2 to 4.2
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0 to 0.4

Comparable Variants