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EN 1.4423 Stainless Steel vs. Nickel 685

EN 1.4423 stainless steel belongs to the iron alloys classification, while nickel 685 belongs to the nickel alloys. They have a modest 23% 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 (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4423 stainless steel and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
17
Fatigue Strength, MPa 380
470
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Shear Strength, MPa 520
770
Tensile Strength: Ultimate (UTS), MPa 850
1250
Tensile Strength: Yield (Proof), MPa 630
850

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 780
1000
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
75
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 3.2
10
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 120
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
1820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 30
42
Strength to Weight: Bending, points 25
31
Thermal Diffusivity, mm2/s 4.3
3.3
Thermal Shock Resistance, points 31
37

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.020
0.030 to 0.1
Chromium (Cr), % 11 to 13
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 0.2 to 0.8
0 to 0.5
Iron (Fe), % 73.8 to 80.5
0 to 2.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.3 to 2.8
3.5 to 5.0
Nickel (Ni), % 6.0 to 7.0
49.6 to 62.5
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.0030
0 to 0.030
Titanium (Ti), % 0
2.8 to 3.3
Zinc (Zn), % 0
0.020 to 0.12