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ACI-ASTM CD4MCuN Steel vs. Grade CX2M Nickel

ACI-ASTM CD4MCuN steel belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 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 CD4MCuN steel and the bottom bar is grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 18
45
Fatigue Strength, MPa 340
260
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
84
Tensile Strength: Ultimate (UTS), MPa 770
550
Tensile Strength: Yield (Proof), MPa 550
310

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1420
1500
Melting Onset (Solidus), °C 1380
1450
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 17
10
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
65
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.5
12
Embodied Energy, MJ/kg 49
160
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
210
Resilience: Unit (Modulus of Resilience), kJ/m3 760
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 4.5
2.7
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.020
Chromium (Cr), % 24.5 to 26.5
22 to 24
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
0 to 1.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.7 to 2.3
15 to 16.5
Nickel (Ni), % 4.7 to 6.0
56.4 to 63
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.020