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Nickel 684 vs. EN 1.4724 Stainless Steel

Nickel 684 belongs to the nickel alloys classification, while EN 1.4724 stainless steel belongs to the iron alloys. 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 1.4724 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
16
Fatigue Strength, MPa 390
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 710
340
Tensile Strength: Ultimate (UTS), MPa 1190
550
Tensile Strength: Yield (Proof), MPa 800
280

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1000
850
Melting Completion (Liquidus), °C 1370
1430
Melting Onset (Solidus), °C 1320
1390
Specific Heat Capacity, J/kg-K 470
490
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 75
7.0
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 10
2.0
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 360
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
73
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
20
Strength to Weight: Bending, points 30
19
Thermal Shock Resistance, points 34
19

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0.7 to 1.2
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
0 to 0.12
Chromium (Cr), % 15 to 20
12 to 14
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 4.0
82.2 to 86.6
Manganese (Mn), % 0 to 0.75
0 to 1.0
Molybdenum (Mo), % 3.0 to 5.0
0
Nickel (Ni), % 42.7 to 64
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.75
0.7 to 1.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 2.5 to 3.3
0