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EN 1.8550 Steel vs. Nickel 684

EN 1.8550 steel belongs to the iron alloys classification, while nickel 684 belongs to the nickel alloys. There are 27 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 1.8550 steel and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
310
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
11
Fatigue Strength, MPa 470
390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
76
Shear Strength, MPa 600
710
Tensile Strength: Ultimate (UTS), MPa 1000
1190
Tensile Strength: Yield (Proof), MPa 760
800

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 440
1000
Melting Completion (Liquidus), °C 1450
1370
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.7
10
Embodied Energy, MJ/kg 23
140
Embodied Water, L/kg 67
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
1610
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 36
40
Strength to Weight: Bending, points 29
30
Thermal Shock Resistance, points 29
34

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.3 to 0.37
0 to 0.15
Chromium (Cr), % 1.5 to 1.8
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 94.4 to 96.3
0 to 4.0
Manganese (Mn), % 0.4 to 0.7
0 to 0.75
Molybdenum (Mo), % 0.15 to 0.25
3.0 to 5.0
Nickel (Ni), % 0.85 to 1.2
42.7 to 64
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
2.5 to 3.3