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ASTM A387 Grade 21 Steel vs. N06058 Nickel

ASTM A387 grade 21 steel belongs to the iron alloys classification, while N06058 nickel belongs to the nickel alloys. There are 28 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 ASTM A387 grade 21 steel and the bottom bar is N06058 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 21
45
Fatigue Strength, MPa 160 to 250
350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
86
Shear Strength, MPa 310 to 370
600
Tensile Strength: Ultimate (UTS), MPa 500 to 590
860
Tensile Strength: Yield (Proof), MPa 230 to 350
410

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Maximum Temperature: Mechanical, °C 480
980
Melting Completion (Liquidus), °C 1470
1540
Melting Onset (Solidus), °C 1430
1490
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 41
9.8
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
70
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 1.8
13
Embodied Energy, MJ/kg 23
170
Embodied Water, L/kg 62
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
320
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 18 to 21
27
Strength to Weight: Bending, points 18 to 20
23
Thermal Diffusivity, mm2/s 11
2.6
Thermal Shock Resistance, points 14 to 17
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0.050 to 0.15
0 to 0.010
Chromium (Cr), % 2.8 to 3.3
20 to 23
Cobalt (Co), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 94.4 to 96
0 to 1.5
Manganese (Mn), % 0.3 to 0.6
0 to 0.5
Molybdenum (Mo), % 0.9 to 1.1
19 to 21
Nickel (Ni), % 0
52.2 to 61
Nitrogen (N), % 0
0.020 to 0.15
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.025
0 to 0.010
Tungsten (W), % 0
0 to 0.3