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ASTM A372 Grade H Steel vs. N08221 Nickel

ASTM A372 grade H steel belongs to the iron alloys classification, while N08221 nickel belongs to the nickel alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade H steel and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 22
34
Fatigue Strength, MPa 310 to 380
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 410 to 570
410
Tensile Strength: Ultimate (UTS), MPa 650 to 910
610
Tensile Strength: Yield (Proof), MPa 430 to 550
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 410
980
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
44
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5
7.9
Embodied Energy, MJ/kg 20
110
Embodied Water, L/kg 49
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
170
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 32
21
Strength to Weight: Bending, points 21 to 27
19
Thermal Shock Resistance, points 19 to 27
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0.3 to 0.4
0 to 0.025
Chromium (Cr), % 0.4 to 0.65
20 to 22
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 97.3 to 98.3
22 to 33.9
Manganese (Mn), % 0.75 to 1.1
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
5.0 to 6.5
Nickel (Ni), % 0
39 to 46
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0.15 to 0.35
0 to 0.050
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.0