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ASTM A387 Grade 2 Steel vs. N06985 Nickel

ASTM A387 grade 2 steel belongs to the iron alloys classification, while N06985 nickel 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 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 2 steel and the bottom bar is N06985 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 25
45
Fatigue Strength, MPa 190 to 250
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 300 to 350
480
Tensile Strength: Ultimate (UTS), MPa 470 to 550
690
Tensile Strength: Yield (Proof), MPa 260 to 350
260

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 420
990
Melting Completion (Liquidus), °C 1470
1350
Melting Onset (Solidus), °C 1420
1260
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 45
10
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
55
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 1.6
8.8
Embodied Energy, MJ/kg 20
120
Embodied Water, L/kg 50
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
250
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 16 to 20
23
Strength to Weight: Bending, points 17 to 19
21
Thermal Diffusivity, mm2/s 12
2.6
Thermal Shock Resistance, points 14 to 16
16

Alloy Composition

Carbon (C), % 0.050 to 0.21
0 to 0.015
Chromium (Cr), % 0.5 to 0.8
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 97.1 to 98.3
18 to 21
Manganese (Mn), % 0.55 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.6
6.0 to 8.0
Nickel (Ni), % 0
35.9 to 53.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
0 to 1.5