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ASTM Grade HI Steel vs. N07776 Nickel

ASTM grade HI steel belongs to the iron alloys classification, while N07776 nickel belongs to the nickel alloys. They have 46% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HI steel and the bottom bar is N07776 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
39
Fatigue Strength, MPa 150
220
Poisson's Ratio 0.27
0.3
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 550
700
Tensile Strength: Yield (Proof), MPa 270
270

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
970
Melting Completion (Liquidus), °C 1400
1550
Melting Onset (Solidus), °C 1350
1500
Specific Heat Capacity, J/kg-K 490
430
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 23
85
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 4.1
15
Embodied Energy, MJ/kg 59
210
Embodied Water, L/kg 200
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
220
Resilience: Unit (Modulus of Resilience), kJ/m3 180
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
20
Thermal Shock Resistance, points 12
20

Alloy Composition

Aluminum (Al), % 0
0 to 2.0
Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 26 to 30
12 to 22
Iron (Fe), % 46.9 to 59.8
0 to 24.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
9.0 to 15
Nickel (Ni), % 14 to 18
50 to 60
Niobium (Nb), % 0
4.0 to 6.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Tungsten (W), % 0
0.5 to 2.5