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Nickel 684 vs. EN 1.4462 Stainless Steel

Nickel 684 belongs to the nickel alloys classification, while EN 1.4462 stainless steel belongs to the iron alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is EN 1.4462 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
26
Fatigue Strength, MPa 390
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 76
80
Shear Strength, MPa 710
500
Tensile Strength: Ultimate (UTS), MPa 1190
780
Tensile Strength: Yield (Proof), MPa 800
520

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 1000
1060
Melting Completion (Liquidus), °C 1370
1450
Melting Onset (Solidus), °C 1320
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
17
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
3.6
Embodied Energy, MJ/kg 140
49
Embodied Water, L/kg 360
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
670
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
28
Strength to Weight: Bending, points 30
24
Thermal Shock Resistance, points 34
21

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 15 to 20
21 to 23
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 4.0
63.7 to 71.9
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 3.0 to 5.0
2.5 to 3.5
Nickel (Ni), % 42.7 to 64
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.22
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 2.5 to 3.3
0