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Nickel 685 vs. EN 1.4837 Stainless Steel

Nickel 685 belongs to the nickel alloys classification, while EN 1.4837 stainless steel belongs to the iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.4837 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
6.8
Fatigue Strength, MPa 470
120
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 1250
500
Tensile Strength: Yield (Proof), MPa 850
250

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 1000
1050
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1330
1350
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 75
20
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 10
3.7
Embodied Energy, MJ/kg 140
53
Embodied Water, L/kg 340
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
29
Resilience: Unit (Modulus of Resilience), kJ/m3 1820
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 42
18
Strength to Weight: Bending, points 31
18
Thermal Diffusivity, mm2/s 3.3
3.7
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
0.3 to 0.5
Chromium (Cr), % 18 to 21
24 to 27
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 2.0
53.4 to 63.7
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
11 to 14
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
1.0 to 2.5
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