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EN 1.8550 Steel vs. Nickel 685

EN 1.8550 steel belongs to the iron alloys classification, while nickel 685 belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.8550 steel and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
17
Fatigue Strength, MPa 470
470
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
77
Shear Strength, MPa 600
770
Tensile Strength: Ultimate (UTS), MPa 1000
1250
Tensile Strength: Yield (Proof), MPa 760
850

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 440
1000
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
75
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.7
10
Embodied Energy, MJ/kg 23
140
Embodied Water, L/kg 67
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
1820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 36
42
Strength to Weight: Bending, points 29
31
Thermal Diffusivity, mm2/s 11
3.3
Thermal Shock Resistance, points 29
37

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.3 to 0.37
0.030 to 0.1
Chromium (Cr), % 1.5 to 1.8
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 94.4 to 96.3
0 to 2.0
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
3.5 to 5.0
Nickel (Ni), % 0.85 to 1.2
49.6 to 62.5
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
2.8 to 3.3
Zinc (Zn), % 0
0.020 to 0.12