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ACI-ASTM CA40 Steel vs. Grade CX2M Nickel

ACI-ASTM CA40 steel belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 10
45
Fatigue Strength, MPa 460
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
84
Tensile Strength: Ultimate (UTS), MPa 910
550
Tensile Strength: Yield (Proof), MPa 860
310

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 750
990
Melting Completion (Liquidus), °C 1440
1500
Melting Onset (Solidus), °C 1500
1450
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 25
10
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
65
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 2.0
12
Embodied Energy, MJ/kg 28
160
Embodied Water, L/kg 100
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 33
18
Strength to Weight: Bending, points 27
17
Thermal Diffusivity, mm2/s 6.7
2.7
Thermal Shock Resistance, points 33
15

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.020
Chromium (Cr), % 11.5 to 14
22 to 24
Iron (Fe), % 81.5 to 88.3
0 to 1.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
15 to 16.5
Nickel (Ni), % 0 to 1.0
56.4 to 63
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.020