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ASTM A387 Grade 21 Steel vs. EN 2.4815 Cast Nickel

ASTM A387 grade 21 steel belongs to the iron alloys classification, while EN 2.4815 cast nickel belongs to the nickel alloys. They have a modest 24% 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 ASTM A387 grade 21 steel and the bottom bar is EN 2.4815 cast nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
3.4
Fatigue Strength, MPa 160 to 250
89
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Tensile Strength: Ultimate (UTS), MPa 500 to 590
460
Tensile Strength: Yield (Proof), MPa 230 to 350
220

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Maximum Temperature: Mechanical, °C 480
1100
Melting Completion (Liquidus), °C 1470
1510
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
47
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 1.8
7.9
Embodied Energy, MJ/kg 23
110
Embodied Water, L/kg 62
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
13
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 18 to 21
15
Strength to Weight: Bending, points 18 to 20
16
Thermal Diffusivity, mm2/s 11
6.4
Thermal Shock Resistance, points 14 to 17
17

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.35 to 0.65
Chromium (Cr), % 2.8 to 3.3
12 to 18
Iron (Fe), % 94.4 to 96
9.8 to 28.7
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0 to 1.0
Nickel (Ni), % 0
58 to 66
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
1.0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.030