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ACI-ASTM CN3M Steel vs. Grade CW2M Nickel

ACI-ASTM CN3M steel belongs to the iron alloys classification, while grade CW2M nickel belongs to the nickel alloys. They have 48% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3M steel and the bottom bar is grade CW2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
23
Fatigue Strength, MPa 150
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
83
Tensile Strength: Ultimate (UTS), MPa 500
560
Tensile Strength: Yield (Proof), MPa 190
310

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1450
1520
Melting Onset (Solidus), °C 1400
1460
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
70
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 5.9
12
Embodied Energy, MJ/kg 80
170
Embodied Water, L/kg 200
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 89
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
17
Thermal Shock Resistance, points 11
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 20 to 22
15 to 17.5
Iron (Fe), % 42.4 to 52.5
0 to 2.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
15 to 17.5
Nickel (Ni), % 23 to 27
60.1 to 70
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0 to 1.0