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Grade CW2M Nickel vs. ASTM A387 Grade 9 Steel

Grade CW2M nickel belongs to the nickel alloys classification, while ASTM A387 grade 9 steel belongs to the iron 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 grade CW2M nickel and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
20 to 21
Fatigue Strength, MPa 190
160 to 240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 83
75
Tensile Strength: Ultimate (UTS), MPa 560
500 to 600
Tensile Strength: Yield (Proof), MPa 310
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Maximum Temperature: Mechanical, °C 960
600
Melting Completion (Liquidus), °C 1520
1460
Melting Onset (Solidus), °C 1460
1410
Specific Heat Capacity, J/kg-K 430
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
6.5
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 12
2.1
Embodied Energy, MJ/kg 170
28
Embodied Water, L/kg 290
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
18 to 21
Strength to Weight: Bending, points 17
18 to 20
Thermal Shock Resistance, points 16
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.15
Chromium (Cr), % 15 to 17.5
8.0 to 10
Iron (Fe), % 0 to 2.0
87.1 to 90.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 15 to 17.5
0.9 to 1.1
Nickel (Ni), % 60.1 to 70
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0
0 to 0.040