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Nickel 693 vs. EN 1.4634 Stainless Steel

Nickel 693 belongs to the nickel alloys classification, while EN 1.4634 stainless steel belongs to the iron alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 693 and the bottom bar is EN 1.4634 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
21
Fatigue Strength, MPa 230
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 440
340
Tensile Strength: Ultimate (UTS), MPa 660
540
Tensile Strength: Yield (Proof), MPa 310
280

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 1010
900
Melting Completion (Liquidus), °C 1350
1430
Melting Onset (Solidus), °C 1310
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 9.1
21
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 60
13
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 9.9
2.9
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 320
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
93
Resilience: Unit (Modulus of Resilience), kJ/m3 250
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
20
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 2.3
5.8
Thermal Shock Resistance, points 19
19

Alloy Composition

Aluminum (Al), % 2.5 to 4.0
0.2 to 1.5
Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 27 to 31
17.5 to 18.5
Copper (Cu), % 0 to 0.5
0 to 0.5
Iron (Fe), % 2.5 to 6.0
74.9 to 81.8
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 53.3 to 67.5
0 to 0.5
Niobium (Nb), % 0.5 to 2.5
0.3 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.5
0.2 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.050
Titanium (Ti), % 0 to 1.0
0