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ASTM Grade HH Steel vs. N10276 Nickel

ASTM grade HH steel belongs to the iron alloys classification, while N10276 nickel belongs to the nickel alloys. They have a modest 34% 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 (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is N10276 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 11
47
Fatigue Strength, MPa 150
280
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
84
Tensile Strength: Ultimate (UTS), MPa 580
780
Tensile Strength: Yield (Proof), MPa 270
320

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1400
1370
Melting Onset (Solidus), °C 1360
1320
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 14
9.1
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
70
Density, g/cm3 7.7
9.1
Embodied Carbon, kg CO2/kg material 3.7
13
Embodied Energy, MJ/kg 53
170
Embodied Water, L/kg 180
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
300
Resilience: Unit (Modulus of Resilience), kJ/m3 190
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 3.8
2.4
Thermal Shock Resistance, points 12
23

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.010
Chromium (Cr), % 24 to 28
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Iron (Fe), % 52.9 to 64.8
4.0 to 7.0
Manganese (Mn), % 0 to 2.0
0 to 0.010
Molybdenum (Mo), % 0 to 0.5
15 to 17
Nickel (Ni), % 11 to 14
51 to 63.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.080
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0
0 to 0.35