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Nickel 684 vs. EN 1.4541 Stainless Steel

Nickel 684 belongs to the nickel alloys classification, while EN 1.4541 stainless steel belongs to the iron alloys. They have a modest 31% 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 (7, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is EN 1.4541 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
14 to 40
Fatigue Strength, MPa 390
190 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 710
410 to 550
Tensile Strength: Ultimate (UTS), MPa 1190
600 to 900
Tensile Strength: Yield (Proof), MPa 800
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1000
940
Melting Completion (Liquidus), °C 1370
1430
Melting Onset (Solidus), °C 1320
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 75
16
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
3.2
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 360
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
120 to 830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
21 to 32
Strength to Weight: Bending, points 30
20 to 27
Thermal Shock Resistance, points 34
14 to 20

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 0.080
Chromium (Cr), % 15 to 20
17 to 19
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 4.0
65.2 to 74
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 3.0 to 5.0
0
Nickel (Ni), % 42.7 to 64
9.0 to 12
Phosphorus (P), % 0 to 0.015
0 to 0.045
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 to 0.7