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Nickel 685 vs. EN 1.4477 Stainless Steel

Nickel 685 belongs to the nickel alloys classification, while EN 1.4477 stainless steel belongs to the iron alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 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 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17
22 to 23
Fatigue Strength, MPa 470
420 to 490
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 770
550 to 580
Tensile Strength: Ultimate (UTS), MPa 1250
880 to 930
Tensile Strength: Yield (Proof), MPa 850
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
13
Thermal Expansion, µm/m-K 12
13

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
52
Embodied Water, L/kg 340
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1820
940 to 1290
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 42
31 to 33
Strength to Weight: Bending, points 31
26 to 27
Thermal Diffusivity, mm2/s 3.3
3.5
Thermal Shock Resistance, points 37
23 to 25

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 to 0.030
Chromium (Cr), % 18 to 21
28 to 30
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0 to 0.8
Iron (Fe), % 0 to 2.0
56.6 to 63.6
Manganese (Mn), % 0 to 1.0
0.8 to 1.5
Molybdenum (Mo), % 3.5 to 5.0
1.5 to 2.6
Nickel (Ni), % 49.6 to 62.5
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 2.8 to 3.3
0
Zinc (Zn), % 0.020 to 0.12
0