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ASTM A356 Grade 9 vs. Grade CX2MW Nickel

ASTM A356 grade 9 belongs to the iron alloys classification, while grade CX2MW nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 9 and the bottom bar is grade CX2MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 17
34
Fatigue Strength, MPa 310
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
84
Tensile Strength: Ultimate (UTS), MPa 670
620
Tensile Strength: Yield (Proof), MPa 460
350

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Maximum Temperature: Mechanical, °C 440
980
Melting Completion (Liquidus), °C 1470
1550
Melting Onset (Solidus), °C 1430
1490
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 41
10
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
65
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 2.4
12
Embodied Energy, MJ/kg 33
170
Embodied Water, L/kg 56
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 570
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 24
19
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 11
2.7
Thermal Shock Resistance, points 19
17

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.020
Chromium (Cr), % 1.0 to 1.5
20 to 22.5
Iron (Fe), % 95.2 to 97.2
2.0 to 6.0
Manganese (Mn), % 0.5 to 0.9
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.2
12.5 to 14.5
Nickel (Ni), % 0
51.3 to 63
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.2 to 0.6
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0.2 to 0.35
0 to 0.35