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EN 1.6781 Steel vs. Nickel 30

EN 1.6781 steel belongs to the iron alloys classification, while nickel 30 belongs to the nickel alloys. They have a modest 21% 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6781 steel and the bottom bar is nickel 30.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17
34
Fatigue Strength, MPa 450
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
82
Tensile Strength: Ultimate (UTS), MPa 830
660
Tensile Strength: Yield (Proof), MPa 680
270

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Maximum Temperature: Mechanical, °C 450
1020
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 44
10
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
60
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 1.9
9.4
Embodied Energy, MJ/kg 25
130
Embodied Water, L/kg 60
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1220
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 12
2.7
Thermal Shock Resistance, points 24
18

Alloy Composition

Carbon (C), % 0.15 to 0.19
0 to 0.030
Chromium (Cr), % 1.3 to 1.8
28 to 31.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0
1.0 to 2.4
Iron (Fe), % 92.6 to 94.6
13 to 17
Manganese (Mn), % 0.55 to 0.8
0 to 0.030
Molybdenum (Mo), % 0.45 to 0.6
4.0 to 6.0
Nickel (Ni), % 3.0 to 3.5
30.2 to 52.2
Niobium (Nb), % 0
0.3 to 1.5
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0
1.5 to 4.0