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ASTM A387 Grade 21 Steel vs. N06603 Nickel

ASTM A387 grade 21 steel belongs to the iron alloys classification, while N06603 nickel belongs to the nickel alloys. 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 21 steel and the bottom bar is N06603 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
28
Fatigue Strength, MPa 160 to 250
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 310 to 370
480
Tensile Strength: Ultimate (UTS), MPa 500 to 590
740
Tensile Strength: Yield (Proof), MPa 230 to 350
340

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Maximum Temperature: Mechanical, °C 480
1000
Melting Completion (Liquidus), °C 1470
1340
Melting Onset (Solidus), °C 1430
1300
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
11
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
50
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.8
8.4
Embodied Energy, MJ/kg 23
120
Embodied Water, L/kg 62
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
25
Strength to Weight: Bending, points 18 to 20
22
Thermal Diffusivity, mm2/s 11
2.9
Thermal Shock Resistance, points 14 to 17
20

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.0
Carbon (C), % 0.050 to 0.15
0.2 to 0.4
Chromium (Cr), % 2.8 to 3.3
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 94.4 to 96
8.0 to 11
Manganese (Mn), % 0.3 to 0.6
0 to 0.15
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
57.7 to 65.6
Phosphorus (P), % 0 to 0.025
0 to 0.2
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0.010 to 0.25
Yttrium (Y), % 0
0.010 to 0.15
Zinc (Zn), % 0
0.010 to 0.1