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ASTM Grade HC Steel vs. Nickel 80A

ASTM grade HC steel belongs to the iron alloys classification, while nickel 80A belongs to the nickel alloys. They have a modest 24% 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 grade HC steel and the bottom bar is nickel 80A.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 6.0
22
Fatigue Strength, MPa 96
430
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 430
1040
Tensile Strength: Yield (Proof), MPa 200
710

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1410
1360
Melting Onset (Solidus), °C 1370
1310
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
11
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
55
Density, g/cm3 7.6
8.3
Embodied Carbon, kg CO2/kg material 2.8
9.8
Embodied Energy, MJ/kg 40
140
Embodied Water, L/kg 170
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
210
Resilience: Unit (Modulus of Resilience), kJ/m3 95
1300
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
23
Strength to Weight: Axial, points 16
35
Strength to Weight: Bending, points 16
27
Thermal Diffusivity, mm2/s 4.5
2.9
Thermal Shock Resistance, points 14
31

Alloy Composition

Aluminum (Al), % 0
0.5 to 1.8
Carbon (C), % 0 to 0.5
0 to 0.1
Chromium (Cr), % 26 to 30
18 to 21
Iron (Fe), % 61.9 to 74
0 to 3.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
69.4 to 79.7
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
1.8 to 2.7