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Grade CX2MW Nickel vs. ASTM Grade HH Steel

Grade CX2MW nickel belongs to the nickel alloys classification, while ASTM grade HH steel belongs to the iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. 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 grade CX2MW nickel and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 34
11
Fatigue Strength, MPa 260
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 84
79
Tensile Strength: Ultimate (UTS), MPa 620
580
Tensile Strength: Yield (Proof), MPa 350
270

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1550
1400
Melting Onset (Solidus), °C 1490
1360
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 10
14
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 65
20
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 12
3.7
Embodied Energy, MJ/kg 170
53
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
53
Resilience: Unit (Modulus of Resilience), kJ/m3 290
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 2.7
3.8
Thermal Shock Resistance, points 17
12

Alloy Composition

Carbon (C), % 0 to 0.020
0.2 to 0.5
Chromium (Cr), % 20 to 22.5
24 to 28
Iron (Fe), % 2.0 to 6.0
52.9 to 64.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 12.5 to 14.5
0 to 0.5
Nickel (Ni), % 51.3 to 63
11 to 14
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0