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Nickel 685 vs. EN 1.4859 Stainless Steel

Nickel 685 belongs to the nickel alloys classification, while EN 1.4859 stainless steel belongs to the iron alloys. They have 54% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 685 and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
23
Fatigue Strength, MPa 470
140
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 1250
490
Tensile Strength: Yield (Proof), MPa 850
210

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 1000
1050
Melting Completion (Liquidus), °C 1380
1410
Melting Onset (Solidus), °C 1330
1360
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 75
36
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 10
6.2
Embodied Energy, MJ/kg 140
88
Embodied Water, L/kg 340
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
91
Resilience: Unit (Modulus of Resilience), kJ/m3 1820
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 42
17
Strength to Weight: Bending, points 31
17
Thermal Diffusivity, mm2/s 3.3
3.4
Thermal Shock Resistance, points 37
11

Alloy Composition

Aluminum (Al), % 1.2 to 1.6
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.030 to 0.1
0.050 to 0.15
Chromium (Cr), % 18 to 21
19 to 21
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 2.0
40.3 to 49
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 3.5 to 5.0
0 to 0.5
Nickel (Ni), % 49.6 to 62.5
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 2.8 to 3.3
0
Zinc (Zn), % 0.020 to 0.12
0