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ASTM A387 Grade 22 Steel vs. N08120 Nickel

ASTM A387 grade 22 steel belongs to the iron alloys classification, while N08120 nickel belongs to the nickel alloys. They have a modest 35% 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 22 steel and the bottom bar is N08120 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
34
Fatigue Strength, MPa 160 to 240
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Shear Strength, MPa 300 to 380
470
Tensile Strength: Ultimate (UTS), MPa 480 to 600
700
Tensile Strength: Yield (Proof), MPa 230 to 350
310

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 460
1000
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
11
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
45
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.7
7.2
Embodied Energy, MJ/kg 23
100
Embodied Water, L/kg 58
240

Common Calculations

PREN (Pitting Resistance) 5.6
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 21
24
Strength to Weight: Bending, points 17 to 20
21
Thermal Diffusivity, mm2/s 11
3.0
Thermal Shock Resistance, points 14 to 17
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.050 to 0.15
0.020 to 0.1
Chromium (Cr), % 2.0 to 2.5
23 to 27
Cobalt (Co), % 0
0 to 3.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 95.1 to 96.8
21 to 41.4
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0 to 2.5
Nickel (Ni), % 0
35 to 39
Niobium (Nb), % 0
0.4 to 0.9
Nitrogen (N), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 0
0 to 2.5