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Nickel 684 vs. EN 1.4507 Stainless Steel

Nickel 684 belongs to the nickel alloys classification, while EN 1.4507 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 (8, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is EN 1.4507 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
25
Fatigue Strength, MPa 390
410
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 76
80
Shear Strength, MPa 710
530
Tensile Strength: Ultimate (UTS), MPa 1190
840
Tensile Strength: Yield (Proof), MPa 800
590

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1370
1440
Melting Onset (Solidus), °C 1320
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
21
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
4.0
Embodied Energy, MJ/kg 140
55
Embodied Water, L/kg 360
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
850
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
30
Strength to Weight: Bending, points 30
25
Thermal Shock Resistance, points 34
23

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
24 to 26
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
1.0 to 2.5
Iron (Fe), % 0 to 4.0
56.4 to 65.8
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 3.0 to 5.0
3.0 to 4.0
Nickel (Ni), % 42.7 to 64
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 2.5 to 3.3
0