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ASTM Grade HC Steel vs. Grade CX2MW Nickel

ASTM grade HC steel belongs to the iron alloys classification, while grade CX2MW nickel belongs to the nickel alloys. They have a modest 28% 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 (2, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 6.0
34
Fatigue Strength, MPa 96
260
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
84
Tensile Strength: Ultimate (UTS), MPa 430
620
Tensile Strength: Yield (Proof), MPa 200
350

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1410
1550
Melting Onset (Solidus), °C 1370
1490
Specific Heat Capacity, J/kg-K 490
430
Thermal Conductivity, W/m-K 17
10
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
65
Density, g/cm3 7.6
8.9
Embodied Carbon, kg CO2/kg material 2.8
12
Embodied Energy, MJ/kg 40
170
Embodied Water, L/kg 170
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
180
Resilience: Unit (Modulus of Resilience), kJ/m3 95
290
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
23
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 4.5
2.7
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.020
Chromium (Cr), % 26 to 30
20 to 22.5
Iron (Fe), % 61.9 to 74
2.0 to 6.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
12.5 to 14.5
Nickel (Ni), % 0 to 4.0
51.3 to 63
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.025
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35