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EN 1.4640 Stainless Steel vs. Nickel 617

EN 1.4640 stainless steel belongs to the iron alloys classification, while nickel 617 belongs to the nickel 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 EN 1.4640 stainless steel and the bottom bar is nickel 617.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 51
40
Fatigue Strength, MPa 230 to 250
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Shear Strength, MPa 440 to 460
510
Tensile Strength: Ultimate (UTS), MPa 620 to 650
740
Tensile Strength: Yield (Proof), MPa 240 to 260
280

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 930
1010
Melting Completion (Liquidus), °C 1420
1380
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 2.8
10
Embodied Energy, MJ/kg 40
140
Embodied Water, L/kg 150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250 to 260
230
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 170
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22 to 23
24
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 4.0
3.5
Thermal Shock Resistance, points 14 to 15
21

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.030 to 0.080
0.050 to 0.15
Chromium (Cr), % 18 to 19
20 to 24
Cobalt (Co), % 0
10 to 15
Copper (Cu), % 1.3 to 2.0
0 to 0.5
Iron (Fe), % 67.4 to 73.6
0 to 3.0
Manganese (Mn), % 1.5 to 4.0
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 5.5 to 6.9
44.5 to 62
Nitrogen (N), % 0.030 to 0.11
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015