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ACI-ASTM CA40F Steel vs. Grade CW2M Nickel

ACI-ASTM CA40F steel belongs to the iron alloys classification, while grade CW2M nickel belongs to the nickel alloys. 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 CA40F steel and the bottom bar is grade CW2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 13
23
Fatigue Strength, MPa 320
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
83
Tensile Strength: Ultimate (UTS), MPa 770
560
Tensile Strength: Yield (Proof), MPa 550
310

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 750
960
Melting Completion (Liquidus), °C 1430
1520
Melting Onset (Solidus), °C 1390
1460
Specific Heat Capacity, J/kg-K 480
430
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
70
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 2.0
12
Embodied Energy, MJ/kg 28
170
Embodied Water, L/kg 100
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
110
Resilience: Unit (Modulus of Resilience), kJ/m3 790
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
17
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.020
Chromium (Cr), % 11.5 to 14
15 to 17.5
Iron (Fe), % 81.6 to 88.3
0 to 2.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
15 to 17.5
Nickel (Ni), % 0 to 1.0
60.1 to 70
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.8
Sulfur (S), % 0.2 to 0.4
0 to 0.030
Tungsten (W), % 0
0 to 1.0