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Nickel 617 vs. EN 1.4621 Stainless Steel

Nickel 617 belongs to the nickel alloys classification, while EN 1.4621 stainless steel belongs to the iron alloys. They have a modest 24% 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 (2, in this case) are not shown.

For each property being compared, the top bar is nickel 617 and the bottom bar is EN 1.4621 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
25
Fatigue Strength, MPa 220
190
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
78
Shear Strength, MPa 510
320
Tensile Strength: Ultimate (UTS), MPa 740
500
Tensile Strength: Yield (Proof), MPa 280
270

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 1010
970
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
21
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 75
14
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 10
2.8
Embodied Energy, MJ/kg 140
41
Embodied Water, L/kg 350
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 3.5
5.7
Thermal Shock Resistance, points 21
17

Alloy Composition

Aluminum (Al), % 0.8 to 1.5
0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 20 to 24
20 to 21.5
Cobalt (Co), % 10 to 15
0
Copper (Cu), % 0 to 0.5
0.1 to 1.0
Iron (Fe), % 0 to 3.0
74.4 to 79.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 44.5 to 62
0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015