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ACI-ASTM CF3M Steel vs. Nickel 80A

ACI-ASTM CF3M steel belongs to the iron alloys classification, while nickel 80A belongs to the nickel alloys. They have a modest 33% 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 ACI-ASTM CF3M 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, % 55
22
Fatigue Strength, MPa 270
430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Tensile Strength: Ultimate (UTS), MPa 520
1040
Tensile Strength: Yield (Proof), MPa 260
710

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 990
980
Melting Completion (Liquidus), °C 1440
1360
Melting Onset (Solidus), °C 1430
1310
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
11
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
55
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 3.8
9.8
Embodied Energy, MJ/kg 53
140
Embodied Water, L/kg 160
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
210
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
35
Strength to Weight: Bending, points 18
27
Thermal Diffusivity, mm2/s 4.3
2.9
Thermal Shock Resistance, points 12
31

Alloy Composition

Aluminum (Al), % 0
0.5 to 1.8
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17 to 21
18 to 21
Iron (Fe), % 59.9 to 72
0 to 3.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 13
69.4 to 79.7
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
1.8 to 2.7