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ACI-ASTM CA6NM Steel vs. N07750 Nickel

ACI-ASTM CA6NM steel belongs to the iron alloys classification, while N07750 nickel belongs to the nickel alloys. They have a modest 25% 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 (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is N07750 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
25
Fatigue Strength, MPa 380
520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 850
1200
Tensile Strength: Yield (Proof), MPa 620
820

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Mechanical, °C 770
960
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.5
10
Embodied Energy, MJ/kg 34
150
Embodied Water, L/kg 110
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
270
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
1770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 30
40
Strength to Weight: Bending, points 26
30
Thermal Diffusivity, mm2/s 6.7
3.3
Thermal Shock Resistance, points 31
36

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 11.5 to 14
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 78.4 to 84.6
5.0 to 9.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 3.5 to 4.5
70 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
2.3 to 2.8