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ASTM A387 Grade 21 Steel vs. N06219 Nickel

ASTM A387 grade 21 steel belongs to the iron alloys classification, while N06219 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 N06219 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
48
Fatigue Strength, MPa 160 to 250
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
79
Shear Strength, MPa 310 to 370
520
Tensile Strength: Ultimate (UTS), MPa 500 to 590
730
Tensile Strength: Yield (Proof), MPa 230 to 350
300

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Maximum Temperature: Mechanical, °C 480
980
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 41
10
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
60
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 1.8
11
Embodied Energy, MJ/kg 23
140
Embodied Water, L/kg 62
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
280
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 18 to 21
24
Strength to Weight: Bending, points 18 to 20
21
Thermal Diffusivity, mm2/s 11
2.7
Thermal Shock Resistance, points 14 to 17
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.050 to 0.15
0 to 0.050
Chromium (Cr), % 2.8 to 3.3
18 to 22
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 94.4 to 96
2.0 to 4.0
Manganese (Mn), % 0.3 to 0.6
0 to 0.5
Molybdenum (Mo), % 0.9 to 1.1
7.0 to 9.0
Nickel (Ni), % 0
60.8 to 72.3
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0.7 to 1.1
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0 to 0.5