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Nickel 80A vs. ASTM Grade HH Steel

Nickel 80A belongs to the nickel alloys classification, while ASTM grade HH steel belongs to the iron 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 (4, in this case) are not shown.

For each property being compared, the top bar is nickel 80A and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
11
Fatigue Strength, MPa 430
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 1040
580
Tensile Strength: Yield (Proof), MPa 710
270

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1360
1400
Melting Onset (Solidus), °C 1310
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 11
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 55
20
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 9.8
3.7
Embodied Energy, MJ/kg 140
53
Embodied Water, L/kg 280
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
53
Resilience: Unit (Modulus of Resilience), kJ/m3 1300
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35
21
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 2.9
3.8
Thermal Shock Resistance, points 31
12

Alloy Composition

Aluminum (Al), % 0.5 to 1.8
0
Carbon (C), % 0 to 0.1
0.2 to 0.5
Chromium (Cr), % 18 to 21
24 to 28
Iron (Fe), % 0 to 3.0
52.9 to 64.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 69.4 to 79.7
11 to 14
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040
Titanium (Ti), % 1.8 to 2.7
0