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EN 1.4618 Stainless Steel vs. Nickel 80A

EN 1.4618 stainless steel belongs to the iron alloys classification, while nickel 80A belongs to the nickel alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is nickel 80A.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
22
Fatigue Strength, MPa 240 to 250
430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 480 to 500
660
Tensile Strength: Ultimate (UTS), MPa 680 to 700
1040
Tensile Strength: Yield (Proof), MPa 250 to 260
710

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 900
980
Melting Completion (Liquidus), °C 1400
1360
Melting Onset (Solidus), °C 1360
1310
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
55
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.7
9.8
Embodied Energy, MJ/kg 39
140
Embodied Water, L/kg 150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
210
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
1300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 25
35
Strength to Weight: Bending, points 22 to 23
27
Thermal Diffusivity, mm2/s 4.0
2.9
Thermal Shock Resistance, points 15 to 16
31

Alloy Composition

Aluminum (Al), % 0
0.5 to 1.8
Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 16.5 to 18.5
18 to 21
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
0 to 3.0
Manganese (Mn), % 5.5 to 9.5
0 to 1.0
Nickel (Ni), % 4.5 to 5.5
69.4 to 79.7
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0
1.8 to 2.7